(A) : Generally the path of a projectile from the earth is parabolic but it is elliptical for projectile going to a very great height.
(R) : Up to ordinary height the projectile moves under a uniform gravitational force, but for great heights, projectile moves under a variable force.

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(A) is true but (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

Both (A) and (R) are true and (R) is not the correct explanation of (A)

answer is A.

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Detailed Solution

As we go up from the surface of the earth , the gravity decreases which decreases the acceleration due to gravity. For large height, acceleration due to gravity changes significantly. Hence , the path of the projectile deviates from parabolic path and shifts towards elliptical nature.

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