Question

An electron (mass m) with an initial velocity v = v₀ i (v₀ > 0) is
in an electric field E = – E₀ ˆi (E₀ = constant > 0). It's
de-Broglie wavelength at time t is given by
(a) ????₀/(1 + eE₀/m t/v₀)
(b) (1 + eE₀t/mv₀)
(c) ????₀
(d) ????₀t

Answer 1

Answer:

Explanation:

Answer is option c but option b can also come if we put e equal to e not

Answer 2

please let me know the que properly