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Two slits are made 1 min apart and the s...

Two slits are made 1 min apart and the screen is placed 1 m away from the slits. What is the firnge separation when blue green light of wavelength 500 nm is used?

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The correct Answer is:
C
Givent that `D=1m`
`lamda=700mm=700xx10^-3m
Since `a=1mm`
`d=2a=2mm`
`=2xx10^-3m`
[L loyd's mirror experiment]`
Fringe width =(lamdaD)/d`
`=(700xx10^9xx1m)/(2xx0^-3m)`
`0.35mm`
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HC VERMA-LIGHT WAVES-Exercises
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  2. A narrow slit S transmitting light of wavelength lamda is placed a dis...

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  3. Two slits are made 1 min apart and the screen is placed 1 m away from ...

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  4. Consider the situation of the previous problem, if the mirror reflects...

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  5. A double slit S1-S2 is illuminated by a coherent light of wavelength l...

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  6. White coherent light (400 nm-700 nm) is sent through the slits of a YD...

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  7. Consider the arrangement shown in figure. The distance D is large comp...

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  8. Two coherent point sources S1 and S2 emit light of wavelength lambda. ...

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  9. figure shows three equidistant slits illuminated by a monochromatic pa...

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  10. In a Young's double slit experiment, the separation between the slits ...

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  11. In a Young's double slit interference experiment the fringe pattern is...

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  12. In a Young's double slit experiment lamda= 500nm, d=1.0 mm andD=1.0m. ...

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  13. The line-width of a bright fringe is sometimes defined as the separati...

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  14. Consider the situation shown in figure. The two slits S1 and S2 placed...

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  15. Consider the arrangement shownin figure. By some mechanism,the separat...

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  16. A soap film of thickness 0.0011 mm appears dark when seen by the refle...

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  17. A parallel beam of light of wavelength 560 nm falls on a thin film of ...

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  18. A parallel beam of white light is incident normally on a water film 1....

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  19. A glass surface is coated by an oil film of uniform thickness 1.00xx10...

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  20. Plane microwaves are incident on a long slit having a width of 5.0 cm....

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