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A simple pendulum, consisting of a mass on a string of length L, is undergoing small oscillations with amplitude A.

a. The mass is increased by a factor of four. What is true about the period?

b. The length is increased by a factor of four. What is true about the period?

c. The amplitude is doubled. What is true about the period? d. The pendulum is taken to the Moon. Which of the following is true about the period?