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OSCILLATIONS (TEST-5)

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more in spring A
more in spring B
equal in both
Noting can be said
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A mass m attached to a spring oscillates every 2 s. If the mass is increased by 2 kg, then time-period increases by 1 s. The initial mass is ____.
1.6 kg
3.9 kg
9.6 kg
12.6 kg
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10 kg
0.98 kg
5 kg
20 kg
If a spring has time period T, and is cut into n equal parts, then the time period of each part is ____.
nT
T
One-forth length of a spring of force constant K is cut away. The force constant of the remaining spring is ____.
K
4 K
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Description:

OSCILLATIONS AND SIMPLE HARMONIC MOTION

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