1.

A spring balance has a scale that reads `0` to `20kg`. The length of the scale is `10cm`. A body suspended from this balance, when displaced and released, oscillates with period of `(pi)/(10)s`. The mass of the body isA. `2.45 kg`B. `4.9 kg`C. `9.8 kg`D. `19.6 kg`

Answer» Correct Answer - B
`T = 2pi sqrt((m)/(K)), Mg = KL, g =9.8 ms^(-2)`


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