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A convex lens is placed in contact with ...

A convex lens is placed in contact with a mirror as shown in figure. If the space between them is filled with water, its power will
.

A

decrease

B

increase

C

remain unchanged

D

can increase of decrease depending on the focal length.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. The two surfaces of a convex lens are of same radius of curvature.It i...

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  2. The two surfaces of a convex lens are of same radius of curvature.It i...

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  3. A convex lens is placed in contact with a mirror as shown in figure. I...

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  4. For a given distance between an object and an image screen,magnificati...

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  5. An object is placed at a distance of f//2 from a convex lens .The imag...

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  6. A camera is focussed to take a cose up picture of an insect at a dista...

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  7. The graph drawn with object distance along abbscissa and image distanc...

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  8. Two plane -convex lenses,each having focal length of 0.4 m,are pressed...

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  9. A film projector magnifies a 100 cm^2 film strip on a screen.If the li...

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  10. In order to include the effect of thickness t of the lens,following f...

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  11. A beam of light is incident on a convex lens parallel to its principal...

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  12. The plane face of the plano-convex lens of focal length 20 cm is silve...

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  13. A lens having focal length f and aperture of diameter d//2 in the cent...

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  14. A beam of parallel rays is brought to focus by a plano-convex lens.A ...

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  15. Large aperture of lens results in

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  16. The spherical abberation in a lens may be inimised by designing of th...

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  17. A glass prism placed in a homogeneous transparent medium will deivatie...

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  18. Angle of minimum deviation for a prism of refractive index 1.5 is equa...

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  19. Yellow light is refracted through a prism producing minimum deviation ...

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  20. The figures represent three cases of ray passing through a prism of re...

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