NEET 2018, Physics Q16: Wave Nature of Matter

NEET2018Paper 2018Physics

Q.

An electron of mass m with an initial velocity $V =, V_{0} i (V_{0} > 0)$ enters an electric field $E = - E_{0} \hat{i}$ = (E0 = constant > 0) at t = 0. If $λ_{0}$ is its de-Broglie wavelength initially, then its de-Broglie wavelength at time t is

A
$\frac{λ _{0}}{( 1 + \frac{e E _{0}}{m V _{0}} t )}$
B
$λ_{0} t$
C
$λ_{0} (1 + \frac{e E _{0}}{m V _{0}} t)$
D
$λ_{0}$

Solution

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