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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

Have constant phase difference

B

Be narrow

C

Be close to each other

D

Of same amplitude

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A
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AAKASH INSTITUTE-WAVE OPTICS-Assignment (Section-A (objective type question(one option is correct)))
  1. Diffraction and interference of light refers to -

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  2. The limit of resolution of an optical instrument arises on account of

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  3. A polariser in used to

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  4. Light waves can be polarised as they are

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  5. Through which character we can distiguish the light waves from sound w...

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  6. The angle of polarisation for any medium is 60^(@) , what will be crit...

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  7. Which of the following cannot be polarised?

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  8. Unpolarised light of intensity I is passed through a polaroid. What is...

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  9. Refractive index of material is equal to tangent of polarising angle. ...

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  10. Two polrizers are oriented with transmission planes making an angle of...

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  11. In case of linearly polarised light, the magnitude of the electric fie...

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  12. When the angle of incidence on a material is 60^(@), the reflected lig...

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

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  14. Which of the following is conserved when light waves interfere

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  15. Huygens wave theory allows us to know

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  16. In Young's double slit experiment, if one of the slit is closed fully,...

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  17. In young's experiment, the separation between 5th maxima and 3rd minim...

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  18. Choose the correct statement

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  19. The distance upto which ray optics holds good is called

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  20. The diffraction effect can be observed in

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