Question

If effective length of a simple pendulum is equal to radius of earth time period will be

Answer 1

(a) 2pie (R / g)^1/2 (b) 2pie (R / 2g)^1/2
(c) 2pie (2R / g)^1/2 (d) pie (R / 2g)^1/2


nd T = 2Π √ LR/g(R+L)
L is lenght , R is radius of earth
Ans: b
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