Home
Class 12
PHYSICS
A lens of power +2 dioptres is placed in...

A lens of power `+2` dioptres is placed in contact with a lens of power `-1` dioptre. The combination will behave like

A

a converging lens of focal length 100 cm

B

a diverging lens of focal length 100 cm

C

a converging lens of focal length 50 cm

D

a diverging lens of focal length 50 cm.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    MOTION|Exercise Exercise - 1 Section M - Chromatic Aberration and Achromatism, Optical Instrument + Eye + Luminous Intensity|6 Videos
  • GEOMETRICAL OPTICS

    MOTION|Exercise Exercise - 2 (Level-I) Section A - Plane Mirror|9 Videos
  • GEOMETRICAL OPTICS

    MOTION|Exercise Exercise - 1 Section K - Lens Maker formula and Magnification, Image formation by convex and concave lens, Combination of lens, Cutting of lens|8 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 lens of power +3.5D is placed in contact with a lens of power -2.5 D. The combination will behave like

A lens of power 6 D is put in contact with a lens of power -4 D. The combination will behave like a

a convex lens of power +6 dioptre is placed in contact with a concave lens of power -4 dioptre. What will be the nature and focal length of this combination?

Two lenses of power +12 and -2 dioptres are placed in contact. The combined focal length of the combination will be

A convex lens of power +5 D is placed in contact with a concave lens of power -4 D. What is the power of combination and nature of lens combination ?

A convex lens of power 4D is kept in contact with a concave lens of power 3D, the effective power of combination will be

A convex lens of power 3 D is held in contact with a concave lens of power -1D.A parallel beam of light is made to fall on the combination. At what distance from the combination will the beam get focussed?

A convex lens of power +2.5 D is in contact with a concave lens of focal length 25 cm. The power of combination is

The power of a concave lens is 10 D and that of a convex lens is 6 D. When these two lenses are placed in contact with each other, the power of their combination will be: