🛠️ JEE🧲 Physics

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…

Q1 FREE PREVIEW

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Time period of a simple pendulum is longer at the top of a mountain than that at the base of the mountain.
Reason (R): Time period of a simple pendulum decreases with increasing value of acceleration due to gravity and vice-versa.
In the light of the above statements, choose the most appropriate answer from the options given below :

[JEE Main 2025, 29 Jan (Shift 1)]

a

Both (A) and (R) are true and (R) is the correct explanation of (A)

b

Both (A) and (R) are true but (R) is not the correct explanation of (A)

c

(A) is true but (R) is false

d

(A) is false but (R) is true

✓ Correct answer: a)

Both (A) and (R) are true and (R) is the correct explanation of (A)

Explanation

\(\text{ }T=2\pi \sqrt{\frac{ℓ}{g}}\\ g=\frac{{g}_{0}{R}^{2}}{(R+h{)}^{2}}\)

As h increases, g decreases, and T increases.

Practice more JEE Physics PYQs

See every question on Oscillations, or browse the full JEE question bank.

See all questions on Oscillations →