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Gravitation question

2025 · 4 Apr · Shift 1 · Q65
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  5. /2025 · 4 Apr · Shift 1 · Q65

Gravitation question

2025 · 4 Apr · Shift 1 · Q65

JEE MainPhysicsGravitationMCQ+4 / −1
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R\mathbf{R}R Assertion A : The kinetic energy needed to project a body of mass mmm from earth surface to infinity is 12mgR\frac{1}{2} \mathrm{mgR}21​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
  1. A
    A\mathbf{A}A is false but R\mathbf{R}R is true
  2. B
    Both A\mathbf{A}A and R\mathbf{R}R are true and R\mathbf{R}R is the correct explanation of A\mathbf{A}A
  3. C
    A\mathbf{A}A is true but R\mathbf{R}R is false
  4. D
    Both A\mathbf{A}A and R\mathbf{R}R are true but R\mathbf{R}R is NOT the correct explanation of A\mathbf{A}A
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