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Refraction of light is the phenomenon of...

Refraction of light is the phenomenon of………. When it…………. .

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change in the path of light , goes from one medium to another.
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PRADEEP-OPTICS-Exercise
  1. One dioptre is the power of a lens of facal length

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  2. Two lenses of focal lengths 20 cm and - 40 cm are held in contact. The...

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  3. Refraction of light is the phenomenon of………. When it…………. .

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  4. The basic cause of refraction is…………in going…………. .

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  5. The sun is visible to us before actual………….and after………. . This is bec...

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  6. Total internal reflection of light is the phenomenon of………..into……..fr...

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  7. For toat internal reflection, light must travel……………to………….. .

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  8. Total internal reflection will occure only when………………in………….medium is…...

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  9. Mirage is accounted for by………….. .

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  10. When reflection occurs from denser to………….., then (mu(2))/(mu(1)) = ……...

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  11. For a double convex lens R(1) is………….. And R(2) is…………… . Therefore, i...

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  12. One dioptre is……………of focal length……… .

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  13. A mark is made on the bottom of beaker and a microscope is focussed on...

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  14. Calculate the speed and wvaelength of light (i) in glass (ii) in air, ...

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  15. The refractive index of diamond is 2.47 and that of glass is 1.51. How...

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  16. A pond of depth 20 cm is half filled with an oil of mu = 1.4 and the o...

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  17. A ray of light is incident at an angle of 60^(@) on one face of a rect...

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  18. In Fig. find the maximum angle i for which light suffers total interna...

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  19. Calculate the critical angle for glass air surface if a ray of light w...

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  20. A small bulb (assumed to be a point source) is placed at the bottom of...

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