Question 33: Oscillations

Question

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 :

Accepted Answer

$$\begin{aligned}
&	ext { As } h 	ext { increases, } g 	ext { decreases, } \mathrm{T} 	ext { increases }\
&\begin{aligned}
& \mathrm{T}=2 \pi \sqrt{\frac{\ell}{\mathrm{~g}}} \
& \mathrm{~g}=\frac{\mathrm{g}_0 \mathrm{R}^2}{(\mathrm{R}+\mathrm{h})^2}
\end{aligned}
\end{aligned}$$

Answer

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

Answer

(A)
is true but
(R)
is false.

Answer

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

Answer

(A)
is false but
(R)
is true.

Oscillations

Choose the correct answer: