Home Physics Wave and Sound Basics of Mechanical Waves and Amplitude of the Waves When two simple harmonic motions of same per…
Physics Wave and Sound Basics of Mechanical Waves and Amplitude of the Waves MCQ (Single Correct)

When two simple harmonic motions of same periods, same amplitude, having phase of 3 π π /2, and at right angles to each other are super imposed, the resultant wave form is a

A
Circle
B
Parabola
C
Ellipse
D
Figure of eight

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The correct answer is:
A

When two SHM of different amplitudes and same period are superposed, the resulting motion is in general elliptical. When the phase difference is 0 or 180 0 , the motion will be a straight line. When the phase difference is 90 or 270 0 , the motion will be an ellipse whose axes coincide with coordinate axes. If the amplitudes are the same and the phase difference is 90 0 or 270 0 , the motion will be circular.

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