Question on: WAEC Physics - 2017
The diagram above illustrates two waves of equal amplitudes A and frequencies approaching each other. When the two waves meet at a point I midway between them, the vertical displacement of the resulting wave will be
A
0
B
\(\frac{A}{2}\)
C
\(\frac{A}{4}\)
D
\(2A\)
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Correct Option: D
This is a type of constructive interference. When two waves of equal amplitude are interfering constructively, the resulting amplitude is twice as large as the amplitude of an individual wave.
= A + A = 2A
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