Question

13. A bird, resting on the floor of an airtight box,
which is being carried by a boy, starts flying.
The boy will feel that the box is now:
(a) heavier
(b) lighter
(c) shows no change in weight
(d) lighter in the beginning and heavier
afterwards​

Answer 1

Answer:

Explanation:lighter because at the beginning the bird was resting on the box it has some weight due to which the box was more heavier but afterwards the bird flew away and now the box is LIGHTER.