Q. Time period of mass $m$ suspended by a spring is $T.$ If the spring is cut to one-half and made to oscillate by suspending double mass, the time period of the mass will be
A) $8T$
B) $4T$
C) $\frac{T}{2}$
D) $T$
Explanation
(d) $T = 2\pi\sqrt{\frac{m}{k}}$
$T^{'} = 2\pi\sqrt{\frac{2m}{2k}} = 2\pi\sqrt{\frac{m}{k}} = T$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.