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Why does the colour of the oil fim on th...

Why does the colour of the oil fim on the surface of water continously change?

A

Angle of incidence

B

angle of reflection

C

thickness of film

D

none of the above.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
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  4. Bending of light into regoins of geometrical shadow is called:

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  5. The width of the difraction band varies

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

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

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

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

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  11. Light waves are transverse, because they:

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  12. Which one proves transverse nature of waves?

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

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  14. Which one of the following statement is true?

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

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

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  17. Polarised light can be produced by

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  18. An unpolarised beam of light of intensity I0 is incident on a combina...

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  19. A ray of ligth is incidentt on a glas plate at an angle of 60^@.What w...

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