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At a finite distance from the source, a ...

At a finite distance from the source, a point source of light produces

A

spherical wave front

B

plane wavefront

C

cylindrical wavefront

D

both spherical and plane wavefronts

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The correct Answer is:
A
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NARAYNA-WAVE OPTICS-C . U . Q (interference)
  1. The contrast in the fringes in any interference pattern depends on:

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  2. If monochromatic red light is replaced by green light the fringe width...

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  3. Interference was observed in interference chamber, when air was presen...

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  4. In young's experiment with white light central fringe is white. If now...

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  5. In young's double slit experiment the slits are of different length an...

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  6. In a double slit experiment, instead of taking slits of equal widths, ...

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  7. When the width of slit aperture is increased by keeping 'd' as constan...

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  8. When viewed in white light, soap bubbles show colours because of

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  9. When petrol drops from a vehicle fall over rain water on road surface ...

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  10. In young's double slit experiment, the distance of the n-th dark fring...

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  11. When a thin film of thickness t is placed in the path of light wave em...

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  12. A Young's double slit experiment is performed with white light, then

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  13. Which of the following decides about the contrast between bright and d...

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  14. If a torch is used in place of monochromatic light in Young's experime...

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  15. At a finite distance from the source, a point source of light produces

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  16. Nature of wave front depends on

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  17. A Young's double-slit set-up for interference shifted from air to with...

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  18. In Young's double slit experiment the phase difference between the wav...

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  19. Instead of using two slits as in Young's experiment, if we use two sep...

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  20. Alternate bright and dark fringes appear in Young's double slit experi...

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