Ray Optics and Optical Instruments

Related Questions

• The diameter of the objective of a telescope is $a$, its magnifying power is $m$ and wavelength of light is $\lambda .$The resolving power of the telescope is

  ---

• A prism of refractive index $\sqrt{2}$ has a refracting angle of $60^o$. At what angle a ray must be incident on it so that it suffers a minimum deviation

  ---

• A man is suffering from colour blindness for green colour. To remove this defect, he should use goggles of

  ---

• If refractive index of red, violet and yellow lights are 1.42, 1.62 and 1.50 respectively for a medium. Its dispersive power will be

  ---

• What should be the angle between two plane mirrors so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mirrors be parallel to each other

  ---