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Light from a laser (lambda = 640 nm) pas...

Light from a laser (`lambda = 640 nm`) passes through a diffraction grating and spreads out into three beams as shown in the figure. Determine the spacing between the slits of the grating

A

240 nm

B

680 nm

C

410 nm

D

800 nm

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The correct Answer is:
D
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RESNICK AND HALLIDAY-INTERFERENCE AND DIFFRACTION -PRACTICE QUESTIONS (Single Correct Choice Type)
  1. If the Huygen's principle applies to any point anywhere in a beam pat...

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  2. No fringes are seen in a single-slit diffraction pattern if

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  3. Monochromatic plane waves of light are incident normally on a single ...

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  4. A single slit with the direction to a point P on a distant screen as s...

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  5. At the first minimum adjacent to the central maximum of a single-slit ...

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  6. A diffraction-limited laser of length l and aperture diameter d gener...

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  7. Two stars that are close together are photographed through a telescop...

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  8. Resolving power of a telescope can be increased by

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  9. In a double-slit diffraction experiment, the number of interference f...

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  10. A double slit is illuminated with monochromatic light of wavelength 6...

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  11. Two slits are separated by 2.00 xx 10^(-5) m. They are illuminated by...

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  12. A 4.0 xx 10^(2) nm thick film of kerosene (n = 1.2) is floating on wa...

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  13. A portion of a soap bubble appears green ( lambda = 500.0 nm in vacuu...

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  14. Light of wavelength lambda in vacuum strikes a lens that is made of g...

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  15. Light wavelength 650 nm is incident normally upon a glass plate the gl...

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  16. Two glass plates, each with an index of refraction of 1.55, are separ...

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  17. Light of 600.0 nm is incident upon a single slit. The resulting diffr...

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  18. A spy satellite is in orbit at a distance of 1.0 xx 10^(6) m above th...

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  19. Light from two sources, lambda(1)= 623 nm and lambda(2) = 488 nm, is ...

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  20. Light from a laser (lambda = 640 nm) passes through a diffraction grat...

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