An electron of mass m with an initial velocity $ \vec{v} = v_0 \hat{i} $ ($ v_0 0 $) enters an electric field $ \vec{E} = -E_0 \hat{i} $ ($ E_0 = \text{constant} 0 $) at $ t = 0 $. If \(

Question

An electron of mass m with an initial velocity $\vec{v} = v_0 \hat{i}$ ( $v_0 > 0$ ) enters an electric field $\vec{E} = -E_0 \hat{i}$ ( $E_0 = \text{constant} > 0$ ) at $t = 0$ . If $\lambda_0$ is its de-Broglie wavelength at time t is

A

$\frac{\lambda_0}{\left(1 + \frac{eE_0 t}{m v_0}\right)}$

B

$\lambda_0 \left(1 + \frac{eE_0 t}{m v_0}\right)$

C

$\lambda_0$

D

$\lambda_0 t$

Accepted Answer

$ \lambda_0 \left(1 + \frac{eE_0 t}{m v_0}\right) $

Answer

$ \frac{\lambda_0}{\left(1 + \frac{eE_0 t}{m v_0}\right)} $

Answer

$ \lambda_0 $

Answer

$ \lambda_0 t $

NEET 2018 Physics de-Broglie Wavelength MCQ Question

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