Q.

When a wave goes from one level to another, there is a change in the
1. Frequency
2. Velocity
3. Amplitude
4. Wavelength
Choose the correct answer.
(a)1, 2 and 3
(b)2, 3 and 4 Right sign
(c)2 and 3
(d)1, 2, 3 and 4
Details:NA

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