When number of waves superimpose at a point the resultant amplitude depends
upon.
a. Amplitude of each wave b. Phase of each wave
c. Both a & b
d. Neither a &b
Answers
c both a & b is the answer
c. Both a & b
Explanation:
Upon the superimposition of two waves the resultant wave formed depends on the phase difference between the waves and their respective amplitude.
The process of superposition is point to point and hence the intensity of the wave at the point of superposition is given by two factors one is its phase and the other is its amplitude.
When the two waves of same time-period superimpose at a phase difference of pi radians (or its odd multiples) then we say that the waves are out of phase and have the minimum resultant intensity because they are in destructive interference.
And when the same pair of waves are in phase with no phase difference or a phase difference of 2 pi radians (or even multiples of pi) then they result in a maximum intensity of the wave.
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TOPIC: superposition of waves
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