Question

Bob of a simple pendulum of length l ismade of iron. The pendulum isoscillating over a horizontal coil carryingdirect current. If the time period of thependulum is T then
A)T < 2π √l/g and damping is smaller than in air alone
(B)T > 2π √l/g and damping is smaller than in air alone
(C)T < 2π √l/g and damping is larger than in air alone
(D)T = 2π √l/g and damping is larger than in air alone ​

Answer 1

Answer:

Sorry that question is from which lesson or class

Answer 2

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