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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 | |