Q19 of 123 Page 410

A laser light is focused by a converging lens. Will there be a significant chromatic aberration?

A laser is a parallel beam of light, which is also monochromatic. And, monochromatic lights never give rise to chromatic aberration.


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17

If a thin lens is dipped in water, does its focal length change?

 18

Can mirrors give rise to chromatic aberration?

 1

A point source of light is placed in front of a plane mirror.

 2

Total internal reflection can take place only if