SaraNextGen.Com


The refractive index of a material of a planoconcave lens is 5/3, the radius of curvature is 0.3 m. The focal length of the lens in air is

a)

-0.45 m

b)

-0.6 m

c)

-0.75 m

d)

-1.0 m


Question ID - 152788 | Toppr Answer

The refractive index of a material of a planoconcave lens is 5/3, the radius of curvature is 0.3 m. The focal length of the lens in air is

a)

-0.45 m

b)

-0.6 m

c)

-0.75 m

d)

-1.0 m

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

Lens maker’s formula

Where,



SaraNextGen