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A beam of light is incident on a convex ...

A beam of light is incident on a convex lens nparallel to its principal axis. As one moves away from the optical centre of the lens on its other side the intensity of light

A

continuously decreases.

B

first decreases and then increases.

C

continuously increases.

D

first increases and then decreases.

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. The lens maker's equation is given by

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  2. For convex lens, the radii of curvatures of the first and second surfa...

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  3. A beam of light is incident on a convex lens nparallel to its principa...

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  4. An object is kept at 0.2 m from a convex lens of focal length of 0.15 ...

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  5. A convex lens of focal length f produces a real image 3 times as that ...

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  6. when an object is kept in frnt of a convex lens the distance between i...

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  7. What is the focal length of double convex lens for which radius of cur...

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  8. A plano-convex lens has focal length of 20 cm. the radius of its sph...

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  9. The focal length of concave lens, accroding to new Cartesiaon sign co...

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  10. A diverging lens may NOT have

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  11. A concave lens of focal length f produces an image (1)/(4) of the size...

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  12. A concave lens has radioi of curvatures of 20 cm and 30 cm respective...

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  13. The radius of curvature of each surface of a biconcave lens made up of...

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  14. A single lens, which will form the image of a given object at the same...

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  15. Two thin lenses may be combined so as to

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  16. Two thin lenses with focal lenghts f(1) and f(2) make a lens of focal ...

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  17. Two thin converging lenses of focal length 15 cm and 30 cm are held i...

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  18. What is the focal of the combination of a convex lens of focal length...

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  19. Two thin lenses, aone convex of focal length 10 cm and other concave l...

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  20. Two lenses of power +12and-2 dioptres are placed in contact. What will...

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