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For total internal reflection, light mus...

For total internal reflection, light must travel

A

from rarer to denser medium

B

from denser to rarer medium

C

in air only

D

in water only

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The correct Answer is:
B
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PRADEEP-OPTICS-Exercise
  1. Refractive index of glass w.r.t water is 9//8. What is the speed of li...

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  2. A small ink dot on a paper is seen through s glass slab of thickness 4...

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  3. For total internal reflection, light must travel

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  4. Optical fibers are based on the phenomenon of

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  5. The relation governing refraction of light from rarer to denser medium...

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  6. In the above question, the ralation remains the same whether (A) ima...

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  7. The focal length of a double convex lens is equal to radius of curvatu...

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  8. One dioptre is the power of a lens of facal length

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

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

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

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

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

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

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

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  16. Mirage is accounted for by………….. .

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

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

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

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

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