Assertion (A): Quartz clocks are more accurate than pendulum clocks.
Reason ( R): Quartz clocks use periodic motion of simple pendulum for the measurement of time.

Options

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

Answer

C

Explanation

Quartz clocks contain an electric circuit and are more accurate than pendulum clocks.