Assertion: Kepler's second law can be understood by conservation of angular momentum principle.
Reason: Kepler's second law is related with areal velocity which can further be proved to be used on coservation of angular momentum as `(dA//dt)=(r^(2)omega)//2`.

Options

A. Statement I is True, Statement II is True: Statement II is a correct explanation for Statement I.
B. Statement I is True, Statement II is True: Statement II is Not a correct explanation for Statement I.
C. Statement I is True, Statement II is False.
D. Statement I is False, Statement II is True.

Answer

A

Explanation

`(dA)/(dt)=1/2r^(2)implies(d theta)/(dt)=1/2r^(2)omega`
`(mr^(2)omega)/(2m)=2/m` constant
`:. L=` constant.