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Two sources of waves are called coherent...

Two sources of waves are called coherent if

A

both have the same amplitude

B

both produce waves of the same wavelegths

C

both produce waves of the same wavelengths having a cosnstant phase difference

D

btoh produce waves having the same velocity

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The correct Answer is:
C
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NIKITA PUBLICATION-INTERFERENCE AND DIFFRACTION-MULTPLE CHOICE QUESTIONS
  1. The interference patter in which the positions of maximum and minimum...

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  2. To obtain a sustained iterference pattern, we requie two sourece which...

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  3. Two sources of waves are called coherent if

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

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  5. A monochromatic visible light, consiSt of

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  6. If the intensities of the two interfering beam in Young's double-slit ...

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  7. Two coherent sources must have the same

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  8. For steady interference, two two sources of light must be

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  9. A source of light is said to be monochromatic if it will emit light wa...

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  10. Which of the following sources of light is monochromatic source ?

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  11. Two independent sources of light will not produce steady interference ...

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  12. The devices which produces highly coherent sourcei is

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  13. In order to avoid overlapping of interference frings and their obliter...

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  14. Two sources of light are said to be equally bright if they will emit w...

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

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  16. For good contrast between and minima in inteference pattern two source...

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  17. Two avoid the overlapping of maximum and minima in interference patter...

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  18. Interference of light was first of all experimentally observed by

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  19. Young's experiment proves that light consist of

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  20. How is the interfecence pattern affected whne the Young's experiment i...

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