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Question

If the bob of the simple pendulum makes an angle θ with the vertical, relate tension in the string to the angle made by the bob

A
Tcosθ=mg and Tsinθ=ma
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B
Tsinθ=mg and Tcosθ=ma
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C
Ttanθ=mg
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D
and Ttanθ=ma
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Solution

The correct option is A Tcosθ=mg and Tsinθ=ma
Resolving the forces acting on the bob in to parallel and perpendicular components, we get,
Tcosθ=mg and
Tsinθ=ma
The correct option is (a)

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