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Statement I: An electron beam is used to...

Statement I: An electron beam is used to obtain interference in a simple Young's double-slit experiment arrangement with appropriate distance between the slits. If the speed of electrons in increased, the width decreases.
Statement II: de Broglie wavelength of electron is inversely proportional to the speed of the electrons.

A

Statement I is True, statement II is True, Statement II is a correct explanation for Statement I.

B

Statement I is Ture, Statement II is Ture, Statement II is NOT a correct explanation for Statement I.

C

Statement I is True, Statement II is False.

D

Statement I is False, Statement II is True.

Text Solution

Verified by Experts

The correct Answer is:
a
Fringe width, `beta = (lambda D)/(d)`
de Broglie wavelength, `lambda = (h)/(m v)`
As speed of electrons increases, `lambda` decreases, i.e., `beta` decreases.
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