Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The radius vector from the Sun to a planet sweeps out equal areas in equal int

Question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The radius vector from the Sun to a planet sweeps out equal areas in equal intervals of time and thus areal velocity of planet is constant.
Reason (R) : For a central force field the angular momentum is a constant.
In the light of the above statements, choose the most appropriate answer from the options given below :

Options:

Answer:

A

Solution:

$\frac{dA}{dt} = \frac{L}{2 m}$
Due to central force torque is zero $&$ angular momentum is constant.

TestHub · Accepted Answer

dt dA ​ = 2 m L ​ Due to central force torque is zero & angular momentum is constant.

Physics - Gravitation Question with Solution | TestHub

Options:

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