A hydrometer executes simple harmonic motion when it is pushed down vertically in a liquid of density 
. If the mass of hydrometer is 
and the radius of the hydrometer tube is 
, then the time period of oscillation is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
We have 
Extra buyonat force that acts on it after dipping ' 
' distance as shown in diagram
Now, 
is proportional to 
and it acts opposite to ' 
'. So we will have a SHM
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