Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : The kinetic energy needed to project a body of mass m from earth surface to infinity is \frac{1}{2} m g R, where R is the radius of earth. Reason R : The maximum potential energy of a body is zero when it is projected to infinity from earth surface. In the light of the above statements, choose the correct answer from the options given below. [4 Apr 2025 Shift 1]

Correct Answer is : A is false but R is true

Both {A} and {R} are true but {R} is NOT the correct explanation of {A}

Both {A} and {R} are true but {R} is the correct explanation of A

Gravitation Part 2

Section: Physics

Question : 8 of 105

Marks: +1, -0

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : The kinetic energy needed to project a body of mass m from earth surface to infinity is ‌

mgR, where R is the radius of earth.
Reason R : The maximum potential energy of a body is zero when it is projected to infinity from earth surface.
In the light of the above statements, choose the correct answer from the options given below.

[4 Apr 2025 Shift 1]

A is true but R is false
A is false but R is true
Both A and R are true but R is NOT the correct explanation of A
Both A and R are true but R is the correct explanation of A

Validate

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