Ray Optics and Optical Instruments

Related Questions

• The reason of seeing the Sun a little before the sunrise is

  ---

• The distance between an object and the screen is 100 cm. A lens produces an image on the screen when placed at either of the positions 40 cm apart. The power of the lens is

  ---

• The light ray is incidence at angle of 60° on a prism of angle 45°. When the light ray falls on the other surface at 90°, the refractive index of the material of prism $\mu $ and the angle of deviation $\delta $ are given by

  ---

• On a glass plate a light wave is incident at an angle of 60°. If the reflected and the refracted waves are mutually perpendicular, the refractive index of material is

  ---

• A prism of refractive index $\mu$ and angle A is placed in the minimum deviation position. If the angle of minimum deviation is A, then the value of A in terms of $\mu$ is

  ---