Question

Assertion :For an oscillating simple pendulum, the tension in the string is maximum at the mean position and minimum at the extreme position. Reason: The velocity of the oscillating bob in simple harmonic motion is maximum at the mean position.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Assertion is incorrect but Reason is correct

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

For an oscillating simple pendulum,

Let, tension in the string be $T$

And let $\theta$ be the angle made by the string with vertical.

$T=mg\cos \theta +\frac{m{v}^2}{r}$

Both the terms are maximum at mean position, when $\theta =0$ velocity is maximum and minimum at extreme position, when velocity becomes 0. Hence, statement 1 and 2 are correct and statement 2 is the correct explanation.