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Questions  

When a body is projected at an angle with the horizontal in a uniform gravitational field of the earth, the angular momentum of the body about the point of projection, as it proceeds along its path 

a
remains constant
b
increases
c
decreases
d
initially decreases and after its highest point increases

detailed solution

Correct option is B

Torque, τ0=mg×r⊥As,  r⊥ is continuously increasing or torque is continuously increasing on the particle. Hence, angular momentum is continuously increasing.

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