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A beam of light of wavelength 600 nm fro...

A beam of light of wavelength 600 nm from a distant source falls on a single slit 1.00 mm wide and the resulting diffraction pattern is observed on a screen 2m away. What is the distance between the first dark fringes on either side of the central fringe?

A

1.2 mm

B

2.4 mm

C

1.2 cm

D

2.4 cm

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

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  2. The width of the difraction band varies

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  3. A beam of light of wavelength 600 nm from a distant source falls on a ...

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

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

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

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

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  8. Light waves are transverse, because they:

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  9. Which one proves transverse nature of waves?

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

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  11. Which one of the following statement is true?

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

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

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  14. Polarised light can be produced by

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

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

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  17. Light from a denser medium I goes to a rarer medium II.When angle of i...

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  18. Two plane mirrors A and B are aligned parallel to each other ,as shown...

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  19. A point source of light B,placed in front of the centre of a mirror of...

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  20. A student performed the experiment of determining the focal length of ...

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