Question

what factors will affect the time period of bob when its attached with string and hanging vertically?

Answer 1

Answer:

well as in numerator. That is why the time period of simple pendulum is independent of the mass of the bob.

(b) In the case of a simple pendulum, the restoring force acting on the bob of the pendulum is given as:

F=–mgsinθ

where,

F= Restoring force

m= Mass of the bob

g= Acceleration due to gravity

θ= Angle of displacement

For small θ,sinθ≃θ

For large θ, sinθ is greater than θ.

This decreases the effective value of g.

Hence, the time period increases as:

T=2π

g

l

(c) Yes, because the working of the wrist watch depends on spring action and it has nothing to do with gravity.

(d) Gravity disappears for a object under free fall, so frequency is zero.

November 22, 2019