Ray Optics and Optical Instruments

Related Questions

• Light from sodium lamp is passed through cold sodium vapours, the spectrum of transmitted light consists of

  ---

• A diminished image of an object is to be obtained on a screen 1.0 m from it. This can be achieved by appropriately placing

  ---

• To produce magnified erect image of a far object, we will be required along with a convex lens, is

  ---

• A prism of refracting angle $60^o$ is made with a material of refractive index $\mu$. For a certain wavelength of light, the angle of minimum deviation is $30^o$. For this, wavelength the value of refractive index of the material is

  ---

• A ray of light incident normally on an isosceles right angled prism travels as shown in the figure. The least value of the refractive index of the prism must be

  ---