Question

1.A bird is in a wire cage hanging from a spring balance. The reading of the balance is taken when the bird
flying about in the cage, and when the bird is at rest in the cage. The first reading will be
A) Less than the second
B) Greater than the second
C) Much greater than the second
D) Same as the second

2.A beam of alpha particles moving towards east is deflected towards south by magnetic field. The direction
of magnetic field is
A) Towards south
B) Towards east
C) Downward
D) Upward​

Answer 1

Answer:

no a is= B

no b is =A

i thing

Answer 2

Answer:

1. When the bird flies the normal reaction provide will be zero on the bird.When the bird is not flying the cage will provide a normal reaction equal to the weight of the bird,so first reading will be less than second.