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Two sources of light of wavelenghs 2.500...

Two sources of light of wavelenghs `2.500 overset @A` and `3,500 overst @A` are used in Young's double slit experiment simultaneously.which order s of the fringes of two waelength paterns coincide?

A

Third order of irst source and fifthe order of second.

B

Seventh order of first source and fifth order of second

C

Fifth order of first source and thrid order of second

D

Fifthe order of first source and seveneth order of second.

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A beam of ligth consisting of two wavelength 4,800 overset@A and 6,000 overset@A is used to obtain interfernce fringes in a double slit experiment.The distnce between the slits is 1.8 mm and the distance of screen from the plane of slits is 1.2 m Find the distance of the third bright frings on the screen from the central maximum for the wavelength 6,000 overset @A .

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
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  2. When ligh wave suffers reflection at the interface between air and gla...

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  3. Two sources of light of wavelenghs 2.500 overset @A and 3,500 overst @...

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  4. In Yound's double slit experiment,wer get 15 fringes per cm on the scr...

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  5. If white light is used in the Newton's ring s experiment ,the color ob...

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  6. Why does the colour of the oil fim on the surface of water continously...

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  7. Bending of light into regoins of geometrical shadow is called:

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  8. The width of the difraction band varies

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  9. A beam of light of wavelength 600 nm from a distant source falls on a ...

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  10. A paper,with two marks havin separation d,is held normal to the line o...

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  11. The diameter of the objective lens of the telescoe is 5 m and waveelne...

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  12. Diameter of human eye lens is 2 mm.What will be the minimum distance b...

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  13. The fact that ligth is a transverse wave in nature derives irts eviden...

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  14. Light waves are transverse, because they:

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  15. Which one proves transverse nature of waves?

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  16. Which of the following phenomenon shows the transverse nature of light...

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  17. Which one of the following statement is true?

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  18. Which one of the following does not show polarisation?

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  19. Refractive index of a maerial is equal to tangent of polarising angle....

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  20. Polarised light can be produced by

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