If after every certain interval of time, particle repeats its motion then motion is called periodic motion
B
To and fro motion of a particle over the same path about its mean position in certain time interval is called oscillatory motion
C
Oscillatory motion described in terms of single sine and cosine functions is called simple harmonic motion
D
All of these
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D
All of these
d (d)
All the above definition are true.
Hence answer is $(d)$
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