Questions
A girl swings on a cradle in sitting position, if she stands, the time period of cradle
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a
decreases
b
increases
c
remains constant
d
first increase then it remains constant
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Correct option is A
Time period decreases. because T=2πlg, T ∝ l if length decreases then T also decreases when girl stands length of pendulum decreases, hence time period of cradle decreasesSimilar Questions
Which one of the following is a simple harmonic motion
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