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NEST2015PhysicsWave Optics

In a Young double slit experiment, the distance between the slits is 50 ~m and the distance of the screen from the slits is 5 cm . An infrared monochromatic light is used to produce an interference pattern with fringe width 1 mm . If the light source is replaced by an electron source to produce the same fringe width then the speed of the electrons is approximately

Options

  1. A70 ~m / s
  2. B700 ~m / s
  3. C7000 ~m / s
  4. D70000 ~m / s

Correct answer

B. 700 ~m / s

Step-by-step solution

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