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For the sustained interference of light,...

For the sustained interference of light, the necessary condition is that the two sources should

A

the same frequency

B

nearly the same frequency

C

the same frequency and have a definite phase relationship

D

different wavelengths

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The correct Answer is:
C
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CP SINGH-WAVE NATURE OF LIGHT-EXERCISES
  1. Two sources of light are said to be coherent if the waves produced by ...

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

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

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

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  5. Young's experiment establishes that

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  6. The phenomenon of interference is shown by

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  7. In the interference pattern, energy is

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

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

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

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  11. If two slightly, different wavelengths are present in the light used i...

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  12. A beam of electron is used YDSE experiment . The slit width is d when ...

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  13. If three slits are used in Young's experiment instead of two, we get

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

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  15. If the source of light used in a young's double slit experiment is cha...

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  16. A double-slit interference experiment is set up in a chamber that can ...

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  17. Light of wavelength lambda in air enters a medium of refractive index ...

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  18. Ratio waves originating from sources S(1) and S(2) having zero phase d...

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  19. In the double-slit experiment, the distance of the second dark fringe ...

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  20. In a Young's double slit experiment (slit distance d) monochromatic li...

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