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Two slits, 4 mm apart, are illuminated b...

Two slits, 4 mm apart, are illuminated by light of wavelength `6000 Å`. What will be the fringe width on a screen placed 2 m from the slits

A

0.12 mm

B

0.3 mm

C

3.0mm

D

4.0mm

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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. In YDSE, d = 2 mm, D = 2 m, and lambda = 500 nm. If intensities of two...

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  2. In a Young's double slit experiment the intensity at a point where tha...

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  3. Two slits, 4 mm apart, are illuminated by light of wavelength 6000 Å. ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  17. To observe diffraction, the size of the obstacle

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  18. In a single slit diffraction pattern

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  19. Diffraction and interference of light refers to -

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

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