- 1(current)
Q. No.Copper of fixed volume \(V\) is drawn into a wire of length \(l.\) When this wire is subjected to a constant force \(F,\) the extension produced in the wire is \(\Delta l.\) Which of the following graphs is a straight line?
1. \(\Delta l ~\text{vs}~\dfrac{1}{l}\)
2. \(\Delta l ~\text{vs}~l^2\)
3. \(\Delta l ~\text{vs}~\dfrac{1}{l^2}\)
4. \(\Delta l ~\text{vs}~l\)
1. \(\Delta l ~\text{vs}~\dfrac{1}{l}\)
2. \(\Delta l ~\text{vs}~l^2\)
3. \(\Delta l ~\text{vs}~\dfrac{1}{l^2}\)
4. \(\Delta l ~\text{vs}~l\)
Subtopic: Â Young's modulus |
 72%
From NCERT
AIPMT - 2014
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
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If the ratio of diameters, lengths and Young's modulus of steel and copper wires shown in the figure are \(p,\) \(q\) and \(s\) respectively, then the corresponding ratio of increase in their lengths would be:
| 1. | \(\dfrac{5 q}{\left(7 {sp}^2\right)} \) | 2. | \(\dfrac{7 q}{\left(5 sp^2\right)} \) |
| 3. | \(\dfrac{2 q}{(5 s p)} \) | 4. | \(\dfrac{7 q}{(5 s p)}\) |
Subtopic: Â Young's modulus |
 78%
From NCERT
NEET - 2013
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
- 1(current)
Q. No.
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