1.

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.

Answer»

Only a, B, d are TRUE
Only b, C, d are true
Only a, c, d are true
All are true

Answer :D


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