JEE Main & Advanced
Physics
Simple Harmonic Motion
Question Bank
Simple Pendulum
question_answer
A second's pendulum is placed in a space laboratory orbiting around the earth at a height 3R, where R is the radius of the earth. The time period of the pendulum is [CPMT 1989; RPMT 1995]
A) Zero
B) \[2\sqrt{3}\,sec\]
C) 4 sec
D) Infinite
Correct Answer:
D
Solution :
In the given case effective acceleration geff. = 0 Þ \[T=\infty \]