V=V0i^
E=−E0i^
a=mF=mqE=m(−e)(−E0)i^
a=meE0i^
V=u+at
V=V0+meE0t
∵ De Broglie wavelength= λ=mvh and initially λ0=mv0h.
=m[V0+meE0t]h=mV0[1+mV0eE0t]h=1+mV0eE0tλ0
An electron of mass m with an initial velocity V=V_0 i (V_0>0) enters in an electric field E=-E_0 i(E_0>0 and is a constant) at t=0. If λ _0 is its…
NEET UG 2018 — Physics Modern Physics
2018mcqmedium
An electron of mass m with an initial velocity V=V0i^(V0>0) enters in an electric field E=−E0i^(E0>0 and is a constant) at t=0. If λ0 is its de-Broglie wavelength initially, then its de-Broglie wavelength at time t is
Official previous-year question
Held on 30 Apr 2018 · Verified 9 Jul 2026.
Options
- A
λ0t
- B
λ0(1+mV0eE0t)
- C
(1+mV0eE0t)λ0
- D
λ0
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