(A) : Angular velocity increases when a boy on turn table rotating about vertical axis with dumbells in his streched hands lowers his hands.
(R ) : In non uniform circular motion velocity changes both in magnitude and direction.

Options

A. Both (A) and (R ) are true and (R ) is the correct explanation of (A)
B. Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
C. (A) is true but (R ) is false
D. Both (A) and (R ) are false

Answer

B