Home
Class 12
PHYSICS
A plano-convex lens when silvered on the...

A plano-convex lens when silvered on the plane side behaves like a concave mirror of focal length 60 cm. However when silvered on the convex side it behaves like a concave mirror of focal length 20 cm. Then the refractive index of the lens

Text Solution

Verified by Experts

The correct Answer is:
1.5
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    MOTION|Exercise Exercise - 3 | Level-I (Section M - Chromatic Aberration and Achromatism, Optical Instrument + Eye + Luminous Intensity)|5 Videos

  • GEOMETRICAL OPTICS

    MOTION|Exercise Exercise 3 Level - II (Section A - Plane Mirro)|2 Videos

  • GEOMETRICAL OPTICS

    MOTION|Exercise Exercise - 3 | Level-I (Section K - Lens Maker formula and Magnification, Image formation by convex and concave lens, Combination of lens, Cutting of lens)|5 Videos

  • FLUID

    MOTION|Exercise Exercise-4 level-II|5 Videos

  • GRAVITATION

    MOTION|Exercise Exercise - 4 Section - B Previous Years Problems|15 Videos

Similar Questions

Explore conceptually related problems

A plano-convex lens, when silvered at its plane surface is equivalent to a concave mirror of focal length 28 cm . When its curved surface is silvered and the plane surface not silvered, it is equivalent to a concave mirror of focal length 10 cm then the refractive index of the mateiral of the lens is:

The rear face of an equiconvex lens of focal length 30 cm is silvered that if behave like a concave mirror The focal length of mirror is [ mu_(Lens) = 3/2]

A concave lens of focal length 20 cm placed in contact with ah plane mirror acts as a convex mirror of focal length

When the plane surface of a plano-convex lens of refractive index 1.5 is silvered, it behaves like a concave mirror with.f = 30 cm. When its convex surface is silvered, it will behave like a concave mirror of focal length

A convex lens has a refractive index 1.5 and power 7 diopter. When the lens is immersed in a liquid, it behaves as a concave lens of focal length 120 cm. Calculate the refractive index of the liquid.

An equiconvex lens of glass (mu_(g) = 1.5) of focal length 10 cm is silvered on one side. It will behave like a

An equiconvec lens of glass (mu_(g)-1.5) of focal length 10cm is silvered on one side. It will behave like a