Question

The value of g decreases by 0.1 % on a
mountain as compared to sea level. To record
proper time by means of a simple pendulum its
length must be:
(1) increased by 0.1 %
(2) decreased by 0.1%
(3) increased by o.2 %
(4) decreased by 0.2%​

Answer 1

The length will be increased by 0.1 %.


The solution is given below:

T = 2π√(l/g)

t(2) = 4 π(2) l/g

Δ g/g x 100 = Δ L/L x 100

Δ L/L x 100 = 0.1 % increase

Thus, option 1 is correct - 0.1 % increase.


#SPJ3