Q. A simple pendulum is vibrating in an evacuated chamber, it will oscillate with
A) Increasing amplitude
B) Constant amplitude
C) Decreasing amplitude
D) First (c) then (a)
Explanation
(b) As it is clear that in vacuum, the bob will not experience any frictional force. Hence, there shall be no dissipation therefore, it will oscillate with constant amplitude
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.