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

Question

Assertion: Generally the path of a projectile from the earth is parabolic but it is elliptical for projectile going to a very large height. Reason: Up to ordinary height the projectile moves under a uniform gravitational force, but for great heights, projectile moves under a variable force. (A) Both assertion and reason are true and reason is the correct explanation of assertion (B) Both assertion and reason are true but reason is not the correct explanation of assertion (C) Assertion is true but reason is false (D) Assertion is false but reason is true

Tardigrade Admin · Accepted Answer

Upto ordinary heights, the change in the distance of a projectile from the centre of earth is negligibie compared to the radius of earth. Hence, the projectile moves under a nearly uniform gravitational force and the path is parabolic. But for the projectiles moving to a large height, the gravitational force decreases quite decreasing variable force, the path of the projectile becomes elliptical.

Q. Assertion : Generally the path of a projectile from the earth is parabolic but it is elliptical for projectile going to a very large height. Reason : Up to ordinary height the projectile moves under a uniform gravitational force, but for great heights, projectile moves under a variable force.

Both assertion and reason are true and reason is the correct explanation of assertion

Both assertion and reason are true but reason is not the correct explanation of assertion

Assertion is true but reason is false

Assertion is false but reason is true

Q. Assertion : Generally the path of a projectile from the earth is parabolic but it is elliptical for projectile going to a very large height.
Reason : Up to ordinary height the projectile moves under a uniform gravitational force, but for great heights, projectile moves under a variable force.