The phenomenon of light bending around an obstacle is called:

The bending of light as it passes from one medium to another is called:

A glass prism splits white light into different colours. This phenomenon is called dispersion of light by prism. Which one of the following statements is correct ?

Which one of the following phenomenon is used in optical fibres?

When a CD (compact disc used in audio and video systems) is seen in sunlight, rainbow-like colours is seen. This can be explained on the basis of the phenomenon of :

Which one of the folowing phenomena verifies the fact that light travels much faster than sound?