Question

Please need help on this not sure about this one

Answer 1

Note that:

1. The wave length: is the distance which the wave is moved in the one complete wave.
2. The frequency: is the number of the complete wave per one second.
3. The period: is the time which taken by the complete wave.
4. The energy: is related to the power of the source of waves and it acts in the amplitude of the wave

Then, The right answer is:

B) The energy of the wave is decreased.