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NEETPhysicsGravitation

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : An artificial satellite is moving in a circular orbit of the earth. If the gravitational pull suddenly disappears, then it moves with the same speed tangential to the original orbit. Reason (R) : The orbital speed of a satellite decreases with the increase in radius of the orbit. In the light of t

Options

  1. ABoth (A) and (R) are true and (R) is the correct explanation of (A).
  2. BBoth (A) and (R) are true and (R) is NOT the correct explanation of (A).
  3. C(A) is true but (R) is false.
  4. D(A) is false but (R) is true.

Correct answer

B. Both (A) and (R) are true and (R) is NOT the correct explanation of (A).

Step-by-step solution

After the force disappears, it continue to move in a straight line due to inertia of direction and orbital speed (V₀= G M r ). So, ( V ₀ 1 r r V ₀ )

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