Navigate

The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index

The radius of the convex surface of a plano-convex lens is 20 cm and the refractive index of material of the lens is 1.5. The focal length of lens is

Options

(a) 30 cm
(b) 50 cm
(c) 20 cm
(d) 40 cm

Correct Answer:

40 cm

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

BHU2003
admin:

Related Questions

  1. A car is moving in a circular horizontal track of radius 10.0 m with a constant speed
  2. A glass flask weighing 390 g having internal volume 500 cc just floats
  3. A particle is kept at rest at the top of a sphere of diameter 42m.When disturbed slightly
  4. Masses of three wires of copper are in the ratio of 1:3:5 and their lengths
  5. In a semiconductor