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Two sources are called coherent if they ...

Two sources are called coherent if they produce waves

A

Of equal wavelength

B

Of equal velocity

C

Having same shape of wavefront

D

Having a constant phase difference

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The correct Answer is:
A, B, C, D
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Coherent Source

RESNICK AND HALLIDAY-INTERFERENCE AND DIFFRACTION -PRACTICE QUESTIONS (More than One Correct Choice Type)
  1. In a Young's double slit experiment, the separation between the two sl...

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  2. White light is used to illuminate the two slits in a Young's double sl...

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  3. In Young's double-slit experiment, white light is used. The separatio...

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  4. If the first minima in Young's double-slit experiment occurs directly ...

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  5. An interference pattern is formed on the screen, when light from two ...

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  6. The intensity of a progressing plane wave in loss-free medium is

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  7. If one of the slits of a standard Young's double-slit exper- iment is...

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  8. If instead of monochromatic light, white light is used in Young's dou...

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

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  10. A parrallel beam of light (lambda=5000Å) is incident at an angle alpha...

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  11. Which of the following can give sustained interference?

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  12. A Young's double-slit experiment is performed with white light. Then

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  13. Fraunhoffer diffraction can be observed with

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  14. A person views the interference pattern, produced by two slits illumi...

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  15. In a Young's double-slit experiment apparatus, we use white light. Th...

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  16. Two sources are called coherent if they produce waves

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  17. To observe a stationary interference pattern formed by two light wave...

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  18. If one of the slits of a standard Young's double-slit exper- iment ap...

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  19. Mark the correct statements(s):

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  20. The fringes produced on a screen by blue monochromatic light falling ...

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