Question

velocity of a projectile in its flight

1) remains constant
2) first decrease, becomes zero and then increase
3) first decrease reaches minimum and then increase
4) first increase reaches maximum and tgen decrease

Answer 1

velocity can be resolved into two vectors. horizontal velocity remains constant, but vertical velocity first decreases, becomes zero at max height and then increases

Answer 2

Point 3 I.e first decrease reaches minimum and then increase i s the answer according to me.
Hope it helps you