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Assertion : Areal velocity of a planet around of surface area and density is same for two planets, escape velocities will be same for both Reason : Areal velocity `= (L)/(2m)`, Where L is angular momentum of planet about centre of sun.A. If both Assertin and Reason are correct and Reason is the correct explanation of AssertionB. If both Assertion and Reason are correct but Reason is not the correct explanation of AssertionC. If Assertion is true but Reason is falseD. If Assertion is false but Reason is true |
Answer» Correct Answer - D `(dA)/(dt)=(L)/(2m)="constant"=(mvr sin theta)/(2m)=(vr sin theta)/(2)` i.e., `(dA)/(dt)` is independent of `m`. |
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