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Questions  

If the differential equation of a damped oscillator is \large \frac{{m{d^2}x}}{{d{t^2}}} + \frac{{bdx}}{{dt}} + kx\, = \,0 then for small damping \large \frac{b}{{\sqrt {km} }} is

a
= 1
b
< 2
c
> 1
d

detailed solution

Correct option is B

For small damping, motional of the block becomes oscillatory. For this the condition (b2 -4km) < 0 must be satsified.    must be satisfied.

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