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An air-tight cage with a parrot sitting in it is suspended from the spring balance. The parrot starts flying. The reading of the spring balance will

a)

Increase

b)

Decrease

c)

Not change

d)

Be zero


Question ID - 57307 | Toppr Answer

An air-tight cage with a parrot sitting in it is suspended from the spring balance. The parrot starts flying. The reading of the spring balance will

a)

Increase

b)

Decrease

c)

Not change

d)

Be zero

1 Answer - 5876 Votes

3537

Answer Key : (c) -

(c)

The system is closed. The weight of parrot is suppresses the base of air cage with a weight equal to weight of parrot. These are internal forces. So there will be no change in the reading of the spring balance



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