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Question

A spring balance has a scale that can read from 0to50kg. The length of the scale is 20cm. A body suspended from this balance when displaced and released oscillates harmonically with a time period of 0.6s. The mass of the body is (takeg=10m/s2)

A
10kg
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B
30kg
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C
18kg
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D
23kg
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Solution

The correct option is D 23kg
Answer is 23KG if g=10 is taken. But in solution g is taken as 9.8m/s
2005824_1395027_ans_6330e179db0541838791aa0418118658.jpg

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