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Q.

The amplitude of a damped oscillator becomes 13rd in 2s. If its amplitude after 6s is 1n times the original amplitude, the value of ‘n’ is

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a

32

b

33

c

33

d

32

answer is D.

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Detailed Solution

detailed_solution_thumbnail

We have A=A0e-bt2m

A03=A0e-b22m........(1)

A0n=A0e-b62m.........(2)

After solving we get,

n=27=33

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