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A thin glass (refractie index = 1.5) len...

A thin glass (refractie index = 1.5) lens has optical power of -5 D in air.Its optical power in a liquuid of refractive index 1.6 will be

A

1D

B

`-1D`

C

`-25D`

D

`25 D`

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. A wire mesh consisting of very small squares is viewed at a distacne o...

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  2. A lens is made of flint glass(refractive index=1.5).When the lens is i...

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  3. A thin glass (refractie index = 1.5) lens has optical power of -5 D in...

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  4. Two thin lenses of focal length f1 and f2 are placed in contant .The f...

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  5. Two lenses of power +12 D and -2D are combined together.What is their ...

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  6. If two lenses of power +1.5 D and +1.0 D are placed in contact ,then t...

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  7. Flash light equipped witha new set of bateries,produces bright white ...

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  8. The angle of a prism is 6^@ and its refractive index for green light i...

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  9. The sky appears blue, because.

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  10. One cannot see through fog, because:

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  11. A leaf which contains only green pigments is illuminated by a laser li...

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  12. Fraunhofer lines of the solar system is an example of

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  13. A doctor advises a patient to use spectacles with a convx lens of foca...

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  14. A person using a lens as a simple microscope sees a

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  15. The focal length of the objective and eye piece of a telescope are res...

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  16. A telescope has an objective lens of focal length 200 cm and an eye pi...

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  17. The astronomical telescope consists off objective and eye-piece.The fo...

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  18. Four lenses of focal length + 10 cm,+50 cm,+100 cm and + 200 cm are av...

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  19. According to Huygen's principle, light is a form of

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  20. Light propagates rectilinearly,because of its

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