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Huygen's principle of secondary waves...

Huygen's principle of secondary waves

A

allows us to find the focal length of a thick lens

B

gives us the magnifying power of a microscope

C

is a geometrical method to find the position of a wavefront

D

is used to determine the velocity of lifgt

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The correct Answer is:
C
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CP SINGH-WAVE NATURE OF LIGHT-EXERCISES
  1. Choose the correct option: (i) A surface on which the wave disturban...

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  2. A wavefront and a ray of light are

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  3. Huygen's principle of secondary waves

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  4. Huygen's priciple of secondary wavelets may be used to

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  5. Which one of the following phenomena is not explained by Huygens const...

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  6. By Huygen's wave theroy of light, we cannot explain the phenomenon of

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  7. In the adjoining figure, a wavefront AB moving in air is incident on a...

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  8. In the adjacent diagram, CP represents a wavefront and AO & BP, the co...

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  9. Which of the following sources gives best mionochromatic light?

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  10. A laser beam is used for carrying our surgery because it

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  11. Two sources of light are said to be coherent if the waves produced by ...

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  12. To deminstrate the phenimenon of interference, we require two sources ...

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  13. For the sustained interference of light, the necessary condition is th...

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  14. Four light waves are represented by i. y=a1sin omegat ii. y=a2sin(o...

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  15. Young's experiment establishes that

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  16. The phenomenon of interference is shown by

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  17. In the interference pattern, energy is

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  18. For observing sustained interferencr with good contrast, which of the ...

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  19. The contrast in the fringes in an interference pattern depends on

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  20. A Young's double slit experiment uses a monochromatic source. The shap...

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