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Merged
shraddha merged 3 commits into from
May 30, 2026
Merged

Modified the content of various pages #12

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7e2b343
Modified the content of various pages
shraddha May 30, 2026
701b832
Corrected the wrong commits
shraddha May 30, 2026
f632bee
Merge pull request #11 from virtual-labs/dev
shraddha May 30, 2026
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2 changes: 1 addition & 1 deletion experiment-descriptor.json
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
"unit-type": "lu",
"label": "",
"basedir": ".",
"LaTeXinMD": "true",
"units": [
{
"unit-type": "aim"
Expand Down Expand Up @@ -57,4 +58,3 @@
}
]
}

127 changes: 77 additions & 50 deletions experiment/posttest.json
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Original file line number Diff line number Diff line change
Expand Up @@ -11,11 +11,12 @@
},
"correctAnswer": "c",
"explanations": {
"a": "Incorrect, explanation: Only 'A' is printed, not the full output.",
"b": "Incorrect, explanation: Only 'B' is printed, not the full output.",
"c": "Correct. explanation: The code prints 'A' and 'C' as per the logic.",
"d": "Incorrect, explanation: 'B' and 'C' are not printed together."
}
"a": "Incorrect. Only 'A' is printed, not the full output.",
"b": "Incorrect. Only 'B' is printed, not the full output.",
"c": "Correct. The code prints 'A' and 'C' as per the logic.",
"d": "Incorrect. 'B' and 'C' are not printed together."
},
"difficulty": "beginner"
},
{
"question": "2. Are float expressions allowed in switch cases?",
Expand All @@ -25,9 +26,10 @@
},
"correctAnswer": "b",
"explanations": {
"a": "Incorrect, explanation: Switch cases only accept integer or character constants.",
"b": "Correct. explanation: Float expressions are not allowed in switch cases."
}
"a": "Incorrect. Switch cases only accept integer or character constants.",
"b": "Correct. Float expressions are not allowed in switch cases."
},
"difficulty": "beginner"
},
{
"question": "3. Switch cases work faster than equivalent if-else ladders.",
Expand All @@ -37,9 +39,10 @@
},
"correctAnswer": "a",
"explanations": {
"a": "Correct. explanation: Switch cases are generally faster due to jump tables.",
"b": "Incorrect, explanation: Switch cases are optimized for speed compared to if-else ladders."
}
"a": "Correct. Switch cases are generally faster due to jump tables.",
"b": "Incorrect. Switch cases are optimized for speed compared to if-else ladders."
},
"difficulty": "intermediate"
},
{
"question": "4. The case keyword is followed by an integer or a character constant.",
Expand All @@ -49,9 +52,10 @@
},
"correctAnswer": "a",
"explanations": {
"a": "Correct. explanation: Case labels must be integer or character constants.",
"b": "Incorrect, explanation: Case labels cannot be float or string values."
}
"a": "Correct. Case labels must be integer or character constants.",
"b": "Incorrect. Case labels cannot be float or string values."
},
"difficulty": "beginner"
},
{
"question": "5. What will be the output for this code: <br/> <img src='images/code15.png'>",
Expand All @@ -63,11 +67,12 @@
},
"correctAnswer": "d",
"explanations": {
"a": "Incorrect, explanation: Only 'I' is printed, not the full output.",
"b": "Incorrect, explanation: Only 'Love' is printed, not the full output.",
"c": "Incorrect, explanation: Only 'Programming' is printed, not the full output.",
"d": "Correct. explanation: The code prints 'I Love Programming' as per the logic."
}
"a": "Incorrect. Only 'I' is printed, not the full output.",
"b": "Incorrect. Only 'Love' is printed, not the full output.",
"c": "Incorrect. Only 'Programming' is printed, not the full output.",
"d": "Correct. The code prints 'I Love Programming' as per the logic."
},
"difficulty": "intermediate"
},
{
"question": "6. What will be the output for this code: <br/> <img src='images/code16.png'>",
Expand All @@ -79,27 +84,29 @@
},
"correctAnswer": "c",
"explanations": {
"a": "Incorrect, explanation: Only 'I' is printed, not the full output.",
"b": "Incorrect, explanation: Only 'Love' is printed, not the full output.",
"c": "Correct. explanation: The code prints 'Programming' as per the logic.",
"d": "Incorrect, explanation: The code does not print all three words together."
}
"a": "Incorrect. Only 'I' is printed, not the full output.",
"b": "Incorrect. Only 'Love' is printed, not the full output.",
"c": "Correct. The code prints 'Programming' as per the logic.",
"d": "Incorrect. The code does not print all three words together."
},
"difficulty": "intermediate"
},
{
"question": "7. What will be the output for this code: <br/> <img src='images/code17.png'>",
"answers": {
"a": "Hi",
"b": "Bye",
"c": "Invalid Syntax",
"b": "Invalid Syntax",
"c": "Bye",
"d": "HiBye"
},
"correctAnswer": "b",
"correctAnswer": "c",
"explanations": {
"a": "Incorrect, explanation: 'Hi' is not printed in this code.",
"b": "Correct. explanation: The code prints 'Bye' as per the logic.",
"c": "Incorrect, explanation: The code is syntactically correct.",
"d": "Incorrect, explanation: Both 'Hi' and 'Bye' are not printed together."
}
"a": "Incorrect. 'Hi' is not printed in this code.",
"b": "Incorrect. The code is syntactically correct.",
"c": "Correct. The code prints 'Bye' as per the logic.",
"d": "Incorrect. Both 'Hi' and 'Bye' are not printed together."
},
"difficulty": "intermediate"
},
{
"question": "8. What will be the output for this code: <br/> <img src='images/code18.png'>",
Expand All @@ -111,27 +118,29 @@
},
"correctAnswer": "b",
"explanations": {
"a": "Incorrect, explanation: 'Hi' is not printed in this code.",
"b": "Correct. explanation: The code prints 'Bye' as per the logic.",
"c": "Incorrect, explanation: The code is syntactically correct.",
"d": "Incorrect, explanation: Both 'Hi' and 'Bye' are not printed together."
}
"a": "Incorrect. 'Hi' is not printed in this code.",
"b": "Correct. The code prints 'Bye' as per the logic.",
"c": "Incorrect. The code is syntactically correct.",
"d": "Incorrect. Both 'Hi' and 'Bye' are not printed together."
},
"difficulty": "intermediate"
},
{
"question": "9. What will be the output for this code: <br/> <img src='images/code17.png'>",
"answers": {
"a": "Hi",
"b": "Bye",
"b": "HiBye",
"c": "HiHello",
"d": "HiBye"
"d": "Bye"
},
"correctAnswer": "b",
"correctAnswer": "d",
"explanations": {
"a": "Incorrect, explanation: 'Hi' is not printed in this code.",
"b": "Correct. explanation: The code prints 'Bye' as per the logic.",
"c": "Incorrect, explanation: 'HiHello' is not printed in this code.",
"d": "Incorrect, explanation: Both 'Hi' and 'Bye' are not printed together."
}
"a": "Incorrect. 'Hi' is not printed in this code.",
"b": "Incorrect. 'HiBye' is not printed in this code.",
"c": "Incorrect. 'HiHello' is not printed in this code.",
"d": "Correct. The code prints 'Bye' as per the logic."
},
"difficulty": "advanced"
},
{
"question": "10. What will be the output for this code: <br/> <img src='images/code20.png'>",
Expand All @@ -143,11 +152,29 @@
},
"correctAnswer": "b",
"explanations": {
"a": "Incorrect, explanation: 'Hello' is not printed in this code.",
"b": "Correct. explanation: The code prints 'World' as per the logic.",
"c": "Incorrect, explanation: Both 'Hello' and 'World' are not printed together.",
"d": "Incorrect, explanation: The code is syntactically correct."
}
"a": "Incorrect. 'Hello' is not printed in this code.",
"b": "Correct. The code prints 'World' as per the logic.",
"c": "Incorrect. Both 'Hello' and 'World' are not printed together.",
"d": "Incorrect. The code is syntactically correct."
},
"difficulty": "advanced"
},
{
"question": "11. Which of the following is an advantage of using switch over if-else ladders in C?",
"answers": {
"a": "Switch is always faster for all cases.",
"b": "Switch allows multi-way branching with constant time lookup for many cases.",
"c": "Switch can handle floating point cases.",
"d": "Switch is used for loops."
},
"correctAnswer": "b",
"explanations": {
"a": "Incorrect. Switch is not always faster, but is generally faster for many cases due to jump tables.",
"b": "Correct. Switch allows multi-way branching with constant time lookup for many cases.",
"c": "Incorrect. Switch cannot handle floating point cases.",
"d": "Incorrect. Switch is not used for loops."
},
"difficulty": "advanced"
}
]
}
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