Can white light produce interference? What is its nature?

Laser light of wavelength 630 nm incident on a pair of slits prodeuces an interference pattern in which the bright fringes are separated by 8.3 mm .A second light produces an interfernce pattern in which the bright fringes are separated by 7.6 mm .Find the wavelength of the second light.

What is the main condition to produce interference of light?

if one of two identical slits producing interference in Young's experiment is covered with glass, so that the light intensity passing through it is reduced to 50% find the ratio of the maximum and minimum intensity of the fringe in the interference pattern.

When two light waves interfere at same point to produce darkness, what becomes of the light energy?

Can wo electric bulbs, point-like and having filaments of the same material placed close together, produce interference? Explain.

What are coherent sources of light? Why no interference pattern is observed when two coherent sources are very for apart?

Why should we have narrow sources to produce good interference fringes?