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An equiconvex lens has focal length equa...

An equiconvex lens has focal length equal to the radius of curvautre.Its refractive index is

A

1.4

B

0.16

C

1.3

D

1.5.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. A fish looking up through the water sees the outside world contained i...

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  2. A diver in swimming pool wants to signal his distress to a person lyin...

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  3. An equiconvex lens has focal length equal to the radius of curvautre.I...

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  4. What is the focal length of a double convex lens for which radius of c...

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  5. A lens behaves as a converging lens in air and diverging lens in wate...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  20. Large aperture of lens results in

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