diff --git a/experiment/simulation/css/expstyle.css b/experiment/simulation/css/expstyle.css
index fd8c427..03e8ccf 100644
--- a/experiment/simulation/css/expstyle.css
+++ b/experiment/simulation/css/expstyle.css
@@ -4,7 +4,7 @@ body,html {margin:0; height:71.5em;padding:0;}
 .clearfix { clear:both; }
 .wholebody {
     width: 80em;
-    height: 70em;
+    height: 67em;
     background-color: white;
     position: relative;
     top: 0em;
@@ -93,7 +93,7 @@ body,html {margin:0; height:71.5em;padding:0;}
           }
 .calc{
 		position:absolute;
-		right:20px;
+		right:85px;
 		top:510px;
 	}
 .graph {
@@ -119,10 +119,10 @@ body,html {margin:0; height:71.5em;padding:0;}
     position: inherit;
     z-index: 11;
     padding-top: 200px;
-    left: -1185px;
-    top: -45px;
-    width:84em;
-    height:35em;
+    left: -1132px;
+    top: -184px;
+    width:81em;
+    height:63.5em;
     background-color: rgba(255, 255, 255, 0);
     backdrop-filter:  blur(9.2px);
    -webkit-backdrop-filter: blur(9.2px);
@@ -225,7 +225,7 @@ body,html {margin:0; height:71.5em;padding:0;}
 /*---------------------------------------------------button css--------------------------------------------*/
 .but{
     top:28em;
-    left:32em;
+    left:30em;
     position: absolute;
     display:flex;
     width:50em;
@@ -253,6 +253,12 @@ button{
 background: white;
 cursor:pointer;
 }
+
+.button:disabled {
+    opacity: 0.6;
+    cursor: not-allowed;
+  }
+
 input[type=button]{
     width:75px;
     cursor: pointer;
@@ -330,7 +336,10 @@ input[type=button]:disabled {
 	z-index:1;
 }
 /********************************************    knob on right side   **********************************/
-
+#knob-container{
+    /* position: absolute;
+       top:2%;*/
+}
 #frequency-knob-container {
   
     position:relative;
@@ -348,7 +357,10 @@ input[type=button]:disabled {
     font-style: italic;
 }
 /*************************    knob for amplitude   **********************************/
-
+#knob-container-amp{
+    /* position: absolute;
+       top:2%;*/
+}
 #amplitude-knob-container1 {
 
     position:relative;
@@ -380,7 +392,10 @@ input[type=button]:disabled {
 }
 
 /*************************    knob for function Generator   **********************************/
-
+#knob-container-fng{
+    /* position: absolute;
+       top:2%;*/
+}
 #frequency-knob-container-fng {
    
     position:relative;
@@ -426,9 +441,12 @@ input[type=button]:disabled {
     font-style: italic;
 }
 /*---------------------------vertical range slider-------------------------*/
+input[type=range][orient=vertical]
+{
 
+}
 #positiony1{
-    appearance: slider-vertical; /* WebKit */
+    -webkit-appearance: slider-vertical; /* WebKit */
     width: 8px;
     height: 120px;
     padding: 0 5px;
@@ -450,7 +468,7 @@ input[type=button]:disabled {
     right:175px;
 }
 #positiony2{
-    appearance: slider-vertical; /* WebKit */
+    -webkit-appearance: slider-vertical; /* WebKit */
     width: 8px;
     height: 120px;
     padding: 0 5px;
@@ -483,12 +501,12 @@ input[type=button]:disabled {
     left:50px;
 }
 #resistor{
-    appearance: slider-vertical; /* WebKit */
-    position:absolute;
-    right:150px;
-    top:170px;
-    height:90px;
-    cursor:pointer;
+   -webkit-appearance: slider-vertical; /* WebKit */
+ position:absolute;
+ right:150px;
+ top:170px;
+ height:90px;
+ cursor:pointer;
 }
 #restr{
     position:absolute;
@@ -533,9 +551,30 @@ input[type=button]:disabled {
 .main-footer
 {
     position:absolute;
-    width: 80.5em;
+    width: 80.3em;
     height:25px;
     background-image: linear-gradient(#2B4D9D,#091069 );
-  top:70.5em;left: 0.3;
+  top:65.6em;left: 0.3;
   text-align: center;display: grid;
 }       
+
+
+ /* Define the keyframes for the blinking effect */
+ @keyframes blink {
+    0% {
+        border-color: blue;
+    }
+    50% {
+        border-color: black;
+    }
+    100% {
+        border-color: blue;
+    }
+  }
+  
+  /* Apply the blinking animation to the cell */
+  .blink {
+    border: 2px solid blue; /* Initial border style */
+    animation: blink 1s infinite; /* Apply animation */
+  }
+  
\ No newline at end of file
diff --git a/experiment/simulation/exp.html b/experiment/simulation/exp.html
index d867bf9..fafab11 100644
--- a/experiment/simulation/exp.html
+++ b/experiment/simulation/exp.html
@@ -10,7 +10,7 @@
         
         <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
 	<script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.8.3/modernizr.js"></script>
-      <!--  <script src="https://cdnjs.cloudflare.com/ajax/libs/jQuery-Knob/1.2.13/jquery.knob.min.js"></script-->
+
        <script src="js/jquery.knob.min.js"></script>
         <script src="js/exp6knobs.js"></script>
         <script src="js/exp6axis.js"></script>
@@ -27,7 +27,8 @@
     
     <body style="width:95em"> 
         
-      <div id="se-pre-con"><div class="load">
+      <div id="se-pre-con">
+        <div class="load">
 		<p>You can read the values of the experiment</p>
 		<img src="images/load.gif"></img>
 		<p>Please wait...</p></div>
@@ -35,7 +36,6 @@
          <div class="wholebody" id="exp">
             <div id="exph">
                 <h1 id="expm">Measurement of Losses in Plastic Fiber</h1>
-               
                 </div>
                 <script>
                     var t=0;
@@ -60,24 +60,66 @@ <h2>Instructions</h2>
                             <center><img src="images/setup.PNG" alt="setup" width="850" height="330"></center>
                             <p>
                                 <ol type="1" style="font-size:17px;">
-                                    <li>Click on <b style="color:red">'Power'</b> button to start the experiment.</li>
-                                    <li>Double click on <b style="color:#2B4D9D">'SineWave'</b> button to generate input waveform. </li>
-                                    <li>Click on <b style="color:#2B4D9D">'Oscilloscope'</b> button to get the output waveform. </li>
-                                    <li>Vary the Amplitude, Frequency, volt/div  using the controllers.</li> 
-                                    <li>Click on <b style="color:#2B4D9D">'Dual'</b> button to observe both the waveforms.</li>
-                                    <li>Channel 1 shows the input waveform, Channel 2 shows the output waveform. </li>
-                                    <li>Click on <b style="color:#2B4D9D">'Add'</b> button to read input values into table.</li>
-                                    <li>Click on <b style="color:#2B4D9D">'PLOT'</b> button to plot the graph from table readings.</li>
+                                    <li>Click the <b style="color:red">'Power'</b> button to start the experiment.</li>
+                                    <li>Double click the <b style="color:#2B4D9D">'SineWave'</b> button to generate input waveform. </li>
+                                    <li>Click the <b style="color:#2B4D9D">'Oscilloscope'</b> button to display the output waveform. </li>
+                                    <li>Use the controllers to vary the Amplitude, Frequency, and Volt/Div.</li> 
+                                    <li>Click the <b style="color:#2B4D9D">'Dual'</b> button to observe both waveforms.</li>
+                                    <li>Channel 1 displays the input waveform, and Channel 2 displays the output waveform. </li>
+                                    <li>Click the <b style="color:#2B4D9D">'Add'</b> button to read the input values into the table.</li>
+                                    <li>Repeat step 7 for ten different input values.</li>
+                                    <li>Now, calculate the loss (in dB) for each row and enter the results (up to 4 decimal places) into the table.<br>
+                                        Formula used to calculate loss (&alpha;):
+                                        <ul>
+                                            <br>
+                                            <li>
+                                                <math style="font-size:20px">
+                                                    <mi>&alpha;</mi>
+                                                   <mo>=</mo>
+                                                        <mo>-</mo>
+                                                      <mfrac bevelled="true" style="font-size:20px">    
+                                                        <mfrac>
+                                                          <mrow>
+                                                            <msub>
+                                                                <mi>log</mi>
+                                                                <mn>10</mn>
+                                                            </msub>
+                                                            <mfrac>                                                               
+                                                                    <mi>V1</mi>
+                                                                    <mi>V2</mi>    
+                                                            </mfrac>
+                                                          </mrow>
+                                                            </mfrac>
+    
+                                                            <mfrac>
+                                                                    <mi>L1</mi>
+                                                                    <mo>+</mo>
+                                                                    <mi>L2</mi>
+                                                            </mfrac>
+                                                            </mfrac>
+                                                            <mo>*</mo>
+                                                            <mi>8.686</mi>
+                                                </math>
+                                                               
+                                            </li><br>
+                                            <li>where V1 and V2 are the output voltages, and L1(1m) and L2(5m) are the cable lengths.</li><br>
+                      </ul>
+                                    </li>
+                                    <li>Click on <b style="color:#2B4D9D">'LOSS'</b> button to verify the calculated loss.</li>
+                                  
                 </ol>  </p>
-                <br>
+               
                         <label style="color:red;font-weight: bold;">Note 1: </label><b>You can read only one value for each select option.</b><br>
-                        <label style="color:red;font-weight: bold;">Note 2: </label><b>You cannot change the amplitude in the middle of reading values into table.</b>
+                        <label style="color:red;font-weight: bold;">Note 2: </label><b>You cannot change the amplitude in the middle of reading values into table.</b><br>
+                        <label style="color:red;font-weight: bold;">Note 3: </label><b>1 nepers = 8.686 dB</b><br>
+                        <label style="color:red;font-weight: bold;">Note 4: </label><b>The correct values for loss will be updated in the table after three incorrect attempts.</b>
                         </div>
                         <div class="modal-footer">
                             <br>
                         </div>
                 </div>
-    </div></div>
+    </div>
+</div>
              
         
 
@@ -122,7 +164,7 @@ <h2>Instructions</h2>
 									<option value=8>Optical cable(850nm)</option>
 			</select></div>
 							
-							<input  type="button" id="add" onclick="insert()" value="Add"/>
+							<input  type="button" id="add" onclick="insert()" value="Add"/ disabled>
                         </div>  <!--------------- end of .knob-container-fng----------------------->
 
                     </div><!--------------- end of .lowerleftsection----------------------->
@@ -134,7 +176,7 @@ <h2>Instructions</h2>
 
                 <div id="circuit">
                        <img  src ="images/setup.PNG" style="width:90%;height:95%;position:absolute;margin:auto;display: block;" />   
-                       <figcaption id="figcap">Setup for Measurement of Data Rate for Digital Optical Link</figcaption> 
+                       <figcaption id="figcap">Setup for Measurement of losses in Plastic Fiber</figcaption> 
                         <input type="button" id="sinecrv" value="SineWave" disabled onclick="chnlo()"  />
                         <input type="button" id="rectifiedop" value="Oscilloscope" onclick="drawhlfrectifier()" disabled=true  />
 
@@ -142,9 +184,9 @@ <h2>Instructions</h2>
                     </div> <!--------------- end of .circuitSection----------------------->
 
                     <div class="but">
-                        <button class="button" onclick="plot()">PLOT</button>
+                        <button class="button" id='loss' onclick="loss()" disabled>LOSS</button>
                         <button class="button" onclick="window.location.reload()">RESET</button>
-                        <button class="button" id="button1" onclick="printf()">PRINT</button><br>
+                        <button class="button" id="print" onclick="printf()" disabled>PRINT</button><br>
                     </div>
 
  <div id="controller" >
@@ -190,24 +232,28 @@ <h2>Instructions</h2>
                 <!--------------- end of .calcln----------------------->
 				<div class="calc">
 			<table  cellpadding="5" border="2 solid black" id="table">
-				<tr style="color:white;background-color:#19318F;height:25px"><th colspan=6>EXPERIMENTAL READINGS</th></tr>
+				<tr style="color:white;background-color:#19318F;height:25px"><th colspan=7>EXPERIMENTAL READINGS</th></tr>
 				<tr bgcolor="#ffffff" class="font">
 					<th align=center rowspan=2>S.No</th>
 					<th align=center rowspan=2>Wavelength</th>
 					<th align=center rowspan=2>Input Voltage (V)</th>
 					<th align=center colspan=2>Output Voltage (V)</th>
+                    <th align=center rowspan=2>&alpha; (in dB)</th>
+                    
 				</tr>
 				<tr bgcolor="#ffffff" class="font">
-					<th align=center>for 1m length</th>
-					<th align=center>for 5m length</th>
+					<th align=center>for 1m length (V1)</th>
+					<th align=center>for 5m length (V2)</th>
 				</tr>
+            
 			</table>
 			
         </div>
          </div>
+        
        <!--------------- end of .wholebody----------------------->
 	
-       <script>
+<script>
 	
     function alert1(icon,title,text)
     {
@@ -235,6 +281,9 @@ <h2>Instructions</h2>
 			function updateTable() {
 				if(i>2) for(var q=3;q<i;q++) document.getElementById(q).remove();
 				i=3;count=1;l3=[];
+                document.getElementById('loss').disabled=true
+                document.getElementById('add').disabled=false
+                wrongCount=0;
 			}
 			function insert() {
 				var bttn=document.getElementById('onff').value;
@@ -244,12 +293,7 @@ <h2>Instructions</h2>
 				else{
 					var x=parseFloat(document.getElementById("amp-knob-fng").value).toFixed(2);
 					var y=document.getElementById('length-knob-container').value;
-					if(count>5){
-                        alert1('warning','','The values you read are enough.<br>Please calculate the result.');
-					
-					}
-					else {
-					  /*if(f==1) if(x!=w) {alert("You can't change amplitude in the middle of the experiment");exit(0);}*/
+
 					   var l=document.getElementById("amp-knob-fng").value;
 						flag=0;
 						for(var d=0;d<l3.length;d++) if(l==l3[d]){flag=1;break;}
@@ -268,15 +312,35 @@ <h2>Instructions</h2>
 							var cell3=row.insertCell(2); 
 							var cell4=row.insertCell(3);
 							var cell5=row.insertCell(4);
+                            var cell6=row.insertCell(5);
+                            
 							cell1.innerHTML=count++;
-							if(y==6) {x1=(x-0.22).toFixed(2);x2=(x-0.27).toFixed(2);y=650;}
-							if(y==8) {x1=(x-0.16).toFixed(2);x2=(x-0.24).toFixed(1);y=850;}
+							if(y==6) {x1=Number((x-0.22).toFixed(2));x2=Number((x-0.27).toFixed(2));y=650;}
+							if(y==8) {x1=Number((x-0.16).toFixed(2));x2=Number((x-0.24).toFixed(1));y=850;}
 							cell2.innerHTML=y;
 							cell3.innerHTML=x;
 							cell4.innerHTML=x1;
 							cell5.innerHTML=x2;
+                            
+                            if(count==11)
+                        {
+                            alert1('info','','The values you read are enough.<br>Please calculate the loss and enter the values into the table.');
+                        document.getElementById("loss").disabled=false;
+                        document.getElementById("add").disabled = true;
+                          // blink the table cells
+            const PTable = document.querySelector('#table');
+            const PRows = PTable.rows;
+            for (let i = 3; i < PRows.length; i++) {
+                const row = PRows[i];
+                const cells = row.cells;
+                    const cell = cells[5];
+                    cell.classList.add('blink')
+                    cell.contentEditable = 'true';
+            }
+                        }
+                            
 						}else alert1('error','Oops..Duplicate Value','You can\'t read the same value more than once.<br>Please change the input readings and add again.');
-					}
+					
 				}
 			}	
 			
@@ -285,16 +349,134 @@ <h2>Instructions</h2>
 				t=0;
 				window.print();
 			}
-           /* document.querySelector('#button1').addEventListener('click', function() {
-        html2canvas(document.querySelector('.calc'), {
-            onrendered: function(canvas) {
-                // document.body.appendChild(canvas);
-              return Canvas2Image.saveAsPNG(canvas);
+
+            var wrongCount=0;
+            function loss()
+            {
+            let isValid = true;
+            let isEmptyField = false;
+            const PTable = document.querySelector('#table');
+            const PRows = PTable.rows;
+            for (let i = 3; i < PRows.length; i++) {
+                const row = PRows[i];
+                const cells = row.cells;
+                const x1 = Number(cells[3].innerText);
+                const x2 = Number(cells[4].innerText);
+
+                loss1 = - (Math.log10(x1/x2)/6); // in nepers
+                loss2 = Number((loss1 * 8.686).toFixed(4)); //in dB
+
+                console.log(loss2)
+                
+                const cell5 = cells[5];
+
+                
+
+                    if(cell5.innerText=='')
+                    {
+                        isEmptyField = true;
+                        isValid = false;  
+                    }
+                    else if(Number(cell5.innerText) !== loss2)
+                    { 
+                        cell5.classList.remove('blink');
+                        cell5.style.border='2px solid red';
+                        isValid = false;   
+                    }
+                    else if(Number(cell5.innerText) == loss2)
+                    { 
+                        cell5.classList.remove('blink');
+                        cell5.style.border='1px solid black';
+                        cell5.contentEditable = 'false';
+                    }
+            }
+
+            if (isEmptyField) {
+                alert1('error','Missing Loss Value!!','Please ensure all values are entered into the table before checking.');
+            } 
+            else if (isValid) {
+                alert1('success','Table is Completed!!!','Now, click on PRINT button.');
+                for (let i = 3; i < PRows.length; i++) {
+                const row = PRows[i];
+                const cells = row.cells;
+                cells[5].classList.remove('blink');
+                cells[5].contentEditable = 'false'; 
+                cells[5].style.border='2px solid green';
+                }
+                document.getElementById('loss').disabled=true;
+                document.getElementById('print').disabled=false;
+                
+            }
+
+            else {
+                wrongCount++;
+                if(wrongCount==3)
+            {
+                alert1('error','Wrong Value(s)!!',`Once again, incorrect value(s) were entered, but this time, the correct values have been updated into the table.\
+                <br>
+               <span style='text-align:left'>For e.g.,</span>
+                                                
+                                                <math style="font-size:20px;color:blue">
+                                                <mi>&alpha;</mi>
+                                                   <mo>=</mo> 
+                                                        <mo>-</mo> 
+                                                      <mfrac bevelled="true" style="font-size:20px">   
+                                                        <mfrac>
+                                                          <mrow>
+                                                            <msub>
+                                                                <mi>log</mi>
+                                                                <mn>10</mn>
+                                                            </msub>
+                                                            <mfrac>                                                               
+                                                                    <mi>${x1}</mi>
+                                                                    <mi>${x2}</mi>  
+                                                            </mfrac>
+                                                          </mrow>
+                                                            </mfrac>
+    
+                                                            <mfrac>
+                                                                    <mi>1</mi>
+                                                                    <mo>+</mo>
+                                                                    <mi>5</mi>
+                                                            </mfrac>
+                                                            </mfrac>
+                                                            <mo>*</mo>
+                                                            <mi>8.686</mi>
+                                                            <mo>=</mo>
+                                                             <mi>${loss2}</mi>
+                                                </math>
+                                                
+                                                `);
+
+                                                for (let i = 3; i < PRows.length; i++) {
+                const row = PRows[i];
+                const cells = row.cells;
+                const x1 = Number(cells[3].innerText);
+                const x2 = Number(cells[4].innerText);
+
+                loss1 = - (Math.log10(x1/x2)/6); // in nepers
+                loss2 = Number((loss1 * 8.686).toFixed(4)); //in dB
+                
+                const cell5 = cells[5];
+                cell5.innerHTML=loss2;
+                cell5.classList.remove('blink');
+                        cell5.style.border='2px solid green';
+                        cell5.contentEditable = 'false';
             }
-		});
-    });*/
+            document.getElementById('loss').disabled=true;
+            document.getElementById('print').disabled=false;
+           
+        } 
+            else{
+                alert1('error','Wrong Value!!','Please enter the correct value (up to 4 decimal places) into the highlighted cell.');
+            }
+            }
+
+        }
+     
 			
             </script>
+
           <script>
             var modal = document.getElementById("myModal");
     
diff --git a/experiment/simulation/js/exp6.js b/experiment/simulation/js/exp6.js
index d6dc1c7..b7ee12a 100644
--- a/experiment/simulation/js/exp6.js
+++ b/experiment/simulation/js/exp6.js
@@ -86,6 +86,7 @@ function drawhlfrectifier() {
           }
 	else{
     canvas = document.getElementById("mycanvas");
+    document.getElementById("add").disabled = false;
     if (null == canvas || !canvas.getContext)
         return;
     ctx = canvas.getContext("2d");
diff --git a/experiment/simulation/js/exp6axis.js b/experiment/simulation/js/exp6axis.js
index 49ae73d..a765f4b 100644
--- a/experiment/simulation/js/exp6axis.js
+++ b/experiment/simulation/js/exp6axis.js
@@ -22,7 +22,7 @@ function mainswt() {
         document.getElementById("grnd").disabled = true;
         
         document.getElementById("sinecrv").disabled = false;
-		document.getElementById("add").disabled = false;
+		
         document.getElementById("rectifiedop").disabled = true;
 		drawAxis();
         drawGrid(ctx);