Choose the correct statement.
a) Any motion that repeats itself in equal intervals of time along the same path is called periodic motion.
b) The displacement of a particle in periodic motion can always be expressed in terms of sine and cosine functions of time.
c) A body in periodic motion moves back and forth over the same path is called oscillatory or vibrating motion
d) Simple harmonic motion is a particular case of periodic motion.

Options

A. Only a, b, d are true
B. Only b, c, d are true
C. only a, c, d are true
D. All are true

Answer

D