Home PYQs UPPSC UPPSC MCQs Prelims 2012 (GS Paper I)

Question

Pendulum clocks become slow in summer because

  1. days in summer are large.
  2. of the friction in the coil
  3. the length of the pendulum increases.
  4. the weight of the pendulum changes

Answer:

Option C: the length of the pendulum increases.

Detailed Solution:

The correct answer is “the length of the pendulum increases.”.

Pendulum clocks become slow in summer because the length of the pendulum increases due to which the time period increases and the pendulum takes more time to complete one oscillation.