1.

Springs of spring constants K,2K,4K,8K……20488K are connected in series. A mass m is attached to one end the system is allowed to oscillation. The time period is approximately

Answer»

`2pisqrt(m/(2K))`
`2pisqrt((2m)/K)`
`2pisqrt(m/(4K))`
`2pisqrt((4M)/K)`

Answer :B


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