PhysicsNEET 2020Matter waves and de Broglie wavelength

Dual Nature of Radiation and Matter

An electron is accelerated from rest through a potential difference of $V$ volt. If the de Broglie wavelength of the electron is $1.227 \times 1 0^{- 2}$ nm, the potential difference is:

A.10 V
B. $1 0^{2}$ V
C. $1 0^{3}$ V
D. $1 0^{4}$ V✓

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

More from this chapter in past papers

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From Physics › Dual Nature of Radiation and Matter › Matter waves and de Broglie wavelength — lectures, notes and every past question on it.

Last revised 7 Sept 2026. Found a mistake? Tell us — corrections are the fastest thing we act on.

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