Which one of the following is a simple harmonic motion [CBSE PMT 1994] – McqOptions

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1.	Which one of the following is a simple harmonic motion [CBSE PMT 1994]
A.	Wave moving through a string fixed at both ends
B.	Earth spinning about its own axis
C.	Ball bouncing between two rigid vertical walls
D.	Particle moving in a circle with uniform speed
Answer» B. Earth spinning about its own axis

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