If the length of a simple pendulum is equal to the radius R of the earth, its time period will be (a) 2pie (R / g)^1/2 (b) 2pie (R / 2g)^1/2 (c) 2pie (2R / g)^1/2 (d) pie (R / 2g)^1/2

Dear Ajay,

T = 2Π √ LR/g(R+L)

L is lenght , R is radius of earth

Ans: b

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Anil Pannikar

IIT Bombay

Dear student,

If length of pendulam is equal to radius of earth then time period=2 pie root(R/g) which is option a) here

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Sagar Singh

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