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In a Young’s double slit experiment, the...

In a Young’s double slit experiment, the source illuminating the slits is changed from blue to violet. The width of the fringes

A

Increases

B

Decreases

C

Becomes unequal

D

Remains same

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE-WAVE OPTICS-Assignment (Section-A (objective type question(one option is correct)))
  1. Two slits, 4 mm apart, are illuminated by light of wavelength 6000 Å. ...

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  2. In Young's interference experiment, the central bright fringe can be i...

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  3. In a Young’s double slit experiment, the source illuminating the slits...

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

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  5. In Young's double slit experiment, when two light waves form third min...

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  6. It is believed that the universe is expanding and hence the distant st...

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  7. The 6563 Å H(2) line emitted by hydrogen in a star is found to be red ...

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  8. In the context of Doppler effect in light, the term red shift signifie...

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  9. A slit of width is illuminated by white light. For red light (lambda=6...

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  10. The bending of light about corners of an obstacle is called

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  11. Angular width (beta) of central maximum of a diffraction pattern on a ...

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  12. Red light is generally used to observe diffraction pattern from single...

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  13. When a compact disc is illuminated by a source of white light, coloure...

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  14. For what distance is ray optics a good approximation when the aperture...

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  15. To observe diffraction, the size of the obstacle

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  16. In a single slit diffraction pattern

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  17. Diffraction and interference of light refers to -

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

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  19. A polariser in used to

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  20. Light waves can be polarised as they are

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