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Grade: 12
        
the amplitude of a simple pendulum oscillating in the air with a small spherical bob decreases from 10cm to8cm in 40seconds assuming that stokes law is valid and ratio of the coefficient of viscosity of air to that of carbondioxide is1.3 the time in which amplitude of this pendulum will reduce from 10cm to 5cm in carbondioxide will be close to 
9 months ago

Answers : (1)

Arun
14014 Points
							
Dear Prasad
 
I am getting answer as 161 seconds.
Let me know, if this is correct. Then I will post my solution.
 
Regards
Arun (askIITians forum expert)
9 months ago
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