Assertion : Graph between potential energy of a spring versus the… - Vidyadip

MCQ

$Assertion$ : Graph between potential energy of a spring versus the extension or compression of the spring is a straight line.

$Reason$ : Potential energy of a stretched or compressed spring, proportional to square of extension or compression.

A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If both the Assertion and Reason are incorrect.
✓
If the Assertion is incorrect but Reason is correct.

✓

Answer

Correct option: D.

If the Assertion is incorrect but Reason is correct.

d
Potential energy $U = \frac{1}{2}\,K{x^2}$ ie $U \propto {x^2}$ This is a equation of parabola, so graph between $U$ and $x$ is a parabola not a straight line

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