State the path difference between two waves for constructive interference .

Define:- destructive interference.

State the condition of destructive interference.

For constructive interference, the phase difference between two waves should be

State the conditions to get constructive and destructive interference of light.

What is phase difference between two waves, if the resultant amplitude due to their superposition is same as that of the waves?

State the condition of constructive interference.

A simple harmonic progressive wave of frequency 5 Hz is travelling along the positive X- direction with a velocity of 40 m/s . Calculate the phase difference between two points separated by a distance of 0.8 m .

The path difference between two identical waves arriving at a point is 85.5lambda .. If the path difference is 42.5 micrometer, the wavelength is

The optical path difference between two identical waves arriving at a point is 371 lambda . Is the point bright or dark ? If the path difference is 0.24 mm . Calculate the wavelength of light used .