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A ray of light travelling in a transpare...

A ray of light travelling in a transparent medium of refractie index `mu` falls on a surface separatign the medium from air at an angle of incidence of `45^@`.For which of the following velues of `mu`,the ray can indergo total internal reflection?

A

1.3

B

1.4

C

1.525 cm`

D

1.6

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. A light beam is travelling from Region I to IV (figure). The refractiv...

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  2. A ray of light is incident at the glass-water interface at an angle i....

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  3. A ray of light travelling in a transparent medium of refractie index m...

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  4. A beam of light is converging towards a point on a screen.A plane para...

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  5. A diverging beam of light from a point source S having divergence angl...

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  6. A ray of light travelling in water is incident on its surface open to ...

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  7. A rectangular glass slab ABCD of refractive index n1 is immersed in wa...

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  8. An observer can see through a pin-hole the top end of a thin rod of he...

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  9. Two beams of red and violet colours re mde to pass separaterly through...

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  10. A ray OP of monochromatic light is incident on the face AB of prism AB...

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  11. Which of the following forms (s) a virtual and erect image fo all posi...

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  12. A spherical surface radius of curvatue R seprates air (refractive inde...

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  13. A point object is placed at the centre of a glass sphere of radius 6 c...

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  14. The graph between object distance u and image distance v for a lens is...

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  15. A convex lens A of focal length 20 cm and a concave lens B of focal le...

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  16. The size of the image of an object,which is at infinity, as formed by ...

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  17. A convergeing lens is used to form an image on a screen.When the upper...

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  18. A point object is placed at a distance of 20 cmA point object is place...

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  19. A biconvex lens of focal length 15 cm is in front of a plane mirror.Th...

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  20. A concave lens of glass, refractive index 1.5 ,has both surfaces of th...

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