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The speed of light in the medium is...

The speed of light in the medium is

A

minimum on the axis of the beam

B

the same everywhere in the beam

C

directly proportional to the intensity I

D

maximum on the axis of the beam

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The correct Answer is:
A
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MOTION-GEOMETRICAL OPTICS-Exercise - 4 | Level-II
  1. An initially parallel cylindrical beam travels in a medium of refracti...

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  2. An initially parallel cylindrical beam travels in a medium of refracti...

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  3. The speed of light in the medium is

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  4. A light ray travelling in glass medium is incident of glass- air inter...

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  5. Water (with refractive index = 4/3) in a tank is 18 cm deep. Oil of re...

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  6. A bi-convex lens is formed with two thin plano-convex lenses as shown ...

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  7. Most materials have the refractive index, n gt 1. So, when a light ray...

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  8. Most materials have the refractive index, n gt 1. So, when a light ray...

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  9. The image of an object, forme by a plano-convex lens at a distance of ...

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  10. A ray of light travelling in the direction (1)/(2)(hat(i)+sqrt(3)hat(j...

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  11. A right angled prism of refractive index mu(1) is placed in a rectangu...

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  12. A point source S is placed at the bottom of a tranparent block of heig...

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  13. Four combinations of two thin lenses are given in List I. The radius o...

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  14. A transparent thin film of uniform thickness and refractive index n(1)...

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  15. Consider a concave mirror and a convex lens (refractive index 1.5) of ...

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  16. Two identical glass rods S(1) and S(2) (refractive index=1.5) have one...

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  17. A monochromatic beam of light is incident at 60^@ on one face of an eq...

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  18. Light guidance in an optical fibre can be understood by considering a ...

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  19. Light guidance in an optical fibre can be understood by considering a ...

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  20. A parallel beam of light is incident from air at an angle alpha on the...

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