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If two slightly, different wavelengths a...

If two slightly, different wavelengths are present in the light used in Young's double-slit experiment, then

A

the sharpness of fringes will more than the case when only one wavelength is prasent

B

the sharpness of fringes will decrease as we move away from the central fringe

C

the central fringe will be white

D

the central fringe will be dark

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The correct Answer is:
C
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CP SINGH-WAVE NATURE OF LIGHT-EXERCISES
  1. The contrast in the fringes in an interference pattern depends on

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

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

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

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

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

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

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

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

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

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

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

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  13. In Young's double slit experiment, the phase difference between the li...

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  14. In the figure is shown Young's double slit experiment. Q is the positi...

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  15. The Young's double slit experiment is carried out with light of wavele...

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  16. Two slits at a distance of 1mm are illuminated by a light of wavelengt...

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  17. A beam with wavelength lambda falls on a stack of partially reflecting...

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  18. Two point sources X and Y emit waves of same frequency and speed but Y...

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  19. Two ideal slits S(1) and S(2) are at a distance d apart, and illuninat...

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  20. Lights of wavelengths lambda(1)=4500 Å, lambda(2)=6000 Å are sent thro...

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