A light spring is suspended with mass 
at its lower end and its upper end fixed to a rigid support. The mass is pulled down a short distance and then released. The period of oscillation is 
second. When a mass 
is added to 
and the system is made to oscillate, the period is found to be 
. The ratio of 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
As, 
(i) 
Divide equation (i) by equation (ii)
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