[" A person carries an air-tight box and a bird sits in it."],[" If the bird flies inside,what happens to the weight of "],[" the box? "]

What is the weight of Emu bird?

Voice box of birds is

Sound box of bird is :

A cage of 1.5 kg carries a bird of 2.5 kg inside it. When the bird starts flying inside the cage, the weight of bird and cage assembly is

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 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 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 ?