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The wavefronts of light coming from a d...

The wavefronts of light coming from a distant source of unknown shape are nearly

A

spherical

B

plane

C

cylindrical

D

elliptical

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The correct Answer is:
B
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NIKITA PUBLICATION-WAVE THEORY OF LIGHT -Multiple Choice Questions
  1. The phase difference between incident ray and reflected ray of light i...

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  2. We can see object due to

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  3. The wavefronts of light coming from a distant source of unknown shape...

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  4. The nature of visible light waves is similar to

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  5. Maxwell's electromagnetic theory of light suggests that light consists...

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  6. A plane mirrorr is approaching you at a speed of 10cm//sec.You can see...

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  7. A man is 180 cm tall and his eyes are 10 cm below the top of his head....

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  8. A ray of light is incident on a plane mirror at an angle of incidence ...

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  9. A ray of light is incident normally on a plane mirrorr. The angle of r...

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  10. The nature of visible light waves is similar to

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  11. For a certain light, there are 2 xx 10^(3) waves in 1.5 mm in air. The...

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  12. Which of the following is an ascending order of frequency ?

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  13. The wavelength of light visible to eye is of the order of

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  14. Blue colour of water in sea is due to

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  15. Our eye is most sensitive for which of following wavelength

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  16. Signals of danger are made red, because

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  17. The reason for shining of air bubble in water is

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  18. At noon, the overhead sun is of normal size. It is due to

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  19. What will be the colour of sky as seen from the earth, if there were n...

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  20. When mirror is rotated through an angle theta, a reflected ray from it...

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