Question

Assertion: The time-period of pendulum, on a satellite orbiting the earth is infinity. 

Reason: Time-period of a pendulum is inversely proportional to √g .

(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 correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

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

Explanation:

Time-period of simple pendulum,

Thus time-period is inversely proportional to √g (where g is acceleration due to gravity). And as the value of g on a satellite is zero, therefore time-period of pendulum is infinity.