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3. Amplitude – The measure of the displacement of the wave from its rest position.
Frequency – The frequency of a wave is the number of times per second that the wave cycles.
Wavelength – The wavelength of a wave is the distance between two corresponding troughs or crests.
4. [M1 L1 T-2] × [M0 L1 T0] = [M1 L2 T-2].
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6.Sound vision system.
7. The repetition of a sound that is caused by reflection of sound waves.
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