Ray Optics and Optical Instruments

Related Questions

• The radius of curvature of convex surface of a thin plano-convex lens is $15 cm$ and refractive index of its material is $1.6$. The power of the lens will be

  ---

• A double convex thin lens made of glass of refractive index 1.6 has radii of curvature 15 cm each. The focal length of this lens when immersed in a liquid of refractive index 1.63 is

  ---

• In the formation of a rainbow light from the sun on water droplets undergoes

  ---

• A diver at a depth of $12m$ in water ($\mu =4/3)$sees the sky in a cone of semi-vertical angle

  ---

• The magnifying power of a simple microscope is 6. The focal length of its lens in metres will be, if least distance of distinct vision is 25$cm$

  ---