A prism can produce spectrum of white light but a glass slab having the same material as prism cannot produce any spectrum. Why?

A beam of white ligth passing through a hollow prism gives no spectrum.Explain.

Expain why white light is dispersed when passing through a prism.

Expain why white light is dispersed when passing through a prism.

A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in figure. The ray will now suffer .

The refractive indices of the crown glass for blue and red light are 1.51 and 1.49 respectively and those of the flint glass are 1.77 and 1.73 respectively.An isosceles prism of angle 6^@ is made of crown glass.A beam of white light is incident at a small angle on this prism .The other flint glass isosceles prism is combined with the crown glass prism such that there is no deviation of teh incident light.Determine the angle of the flint glass prism.Calculate the net dispersion of the combined system.

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

Violet colour is seen at te bottom of the spectrum,when white light is dispersed by a prism.Why?

When a ray of light passes through a glass prism then a spectrum is obtained on the screen Draw a diagram showing a spectrum of white light.

When a ray of light passes through a glass prism then a spectrum is obtained on the screen Name the seven colours of spectrum in a serial order