wave_mechanics interference_and_superposition_of_waves Question 8

Question: Coherent sources are characterized by the same

[KCET 1993]

Options:

A) Phase and phase velocity

B) Wavelength, amplitude and phase velocity

C) Wavelength, amplitude and frequency

D) Wavelength and phase

Show Answer

Answer:

Correct Answer: B

Solution:

Because in general phase velocity = wave velocity.

But in case of complex waves (many waves together) phase velocity $ \ne $ wave velocity.

            $ \therefore  $  If two waves have same $ \lambda ,v; $  then they have same frequency too