For Young's double slit experiment, two statements are given below: Statement I : If screen is moved away from

Question

For Young's double slit experiment, two statements are given below: Statement I : If screen is moved away from the plane of slits, angular separation of the fringes remains constant. Statement II : If the monochromatic source is replaced by another monochromatic source of larger wavelength, the angular separation of fringes decreases. In the light of the above statements, choose the correct answer from the options given below:

Accepted Answer

Angular separation $	heta = \frac{\lambda}{d}$. It is independent of the distance of the screen (Statement I is true). If $\lambda$ increases, $	heta$ increases, so Statement II is false.

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