Q.

A clock with a second pendulum is gaining 5 minutes a day. To correct it

A. The eccentricity of bob with pendulum should be decreased
B. The length of the pendulum should be decreased
C. The length of pendulum should not be changed
D. The length of the pendulum should be increased
E. The eccentricity of bon with pendulum should be increased
Answer» D. The length of the pendulum should be increased
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