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A bird is sitting on the floor of a wire...

A bird is sitting on the floor of a wire cage and the cage is in the hand of a boy . The bird starts flying in the cage . Will the boy experience any change in the weight of the cage ?

A

heavier

B

lighter

C

same in weight

D

lighter in the beginning and heavier later

Text Solution

Verified by Experts

The correct Answer is:
B
In a wire cage, if the bird flies, its reaction is experienced by floor, and not on the base of the cage. So, when the bird flies, the boy feels the weight of box only. When the bird is sitting in the cage, the weight of the system is the sum of the weight of bird and that of box.
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