Is it necessary to have two waves of equal intensity to study interfrence pattern? Will there be an effect on clarity if the waves have unequal intensity?

Two coherent sources of intensities I_1 and I_2 produce an interference pattern. The maximum intensity in the interference pattern will be

(a) When monochromatic light is incident on a surface separating two media, the reflected and refracted light both have the same frequency as the incident frequency. Explain why? (b) When light travels from a rarer to a denser medium, the speed decreases. Does the reduction in speed imply a reduction in the energy carried by the light wave? (c) In the wave picture of light, intensity of light is determined by the square of the amplitude of the wave. What determines the intensity of light in the photon picture of light

Two beams of light of intensity I_(1), and I_(2) interfere to give an interference pattern. If the ratio of maximum intensity to that of minimum intensity is (16)/(4) then I_(1):I_(2)= .......

When two progressive waves of intensity I_(1) and I_(2) but slightly different frequencies superpose, the resultant intensity fluctuates between :-

The path difference between two interfering waves at a point on the screen is lambda // 6 , The ratio of intensity at this point and that at the central bright fringe will be (assume that intensity due to each slit is same)

In case of beats, produced by the superposition of two waves of equal amplitudes, if maximum intensity is x times the intensity of superposing wave then x = ……..

Calculate the ratio of intensity of wave train A to wave train B.

Answer the following questions: (b) As you have learnt in the text, the principle of linear superposition of wave displacement is basic to understanding intensity distributions in diffraction and interference patterns. What is the justification of this principle?