Three masses 
and 0.4 kg are suspended at end of a spring. When the 0.4 kg mass is removed, the system oscillates with a period 2 s. When the 0.3 kg mass is also removed, the system will oscillate with a period
Text Solution
Verified by ExpertsThe correct answer is:
A
or 
Mass has reduced to 
th of the initial mass. Hence, time period will remain half.
So, according to question, if 0.3 kg mass is also removed, then the system will oscillate with a period of 
.
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