Ray Optics and Optical Instruments

Related Questions

• The refractive index of the material of the prism for violet colour is 1.69 and that for red is 1.65. If the refractive index for mean colour is 1.66, the dispersive power of the material of the prism

  ---

• When a ray of light is incident normally on one refracting surface of an equilateral prism (Refractive index of the material of the prism = 1.5

  ---

• Total internal reflection is possible when light rays travel

  ---

• Critical angle of light passing from glass to air is minimum for

  ---

• A Galileo telescope has an objective of focal length $100cm$ and magnifying power $50$. The distance between the two lenses in normal adjustment will be

  ---