The displacement y of a particle executing periodic motion is given by\[y=4{{\cos }^{2}}(t/2)\sin (1000t)\]. This expression may be considered to be a result of the superposition of........... independent harmonic motions [IIT 1992]

The displacement y of a particle executing periodic motion is given by

1.	The displacement y of a particle executing periodic motion is given by\[y=4{{\cos }^{2}}(t/2)\sin (1000t)\]. This expression may be considered to be a result of the superposition of........... independent harmonic motions [IIT 1992]
A.	Two
B.	Three
C.	2
D.	Five
Answer» C. 2

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The displacement y of a particle executing periodic motion is given by\[y=4{{\cos }^{2}}(t/2)\sin (1000t)\]. This expression may be considered to be a result of the superposition of........... independent harmonic motions [IIT 1992]

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