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NEET UG PHYSICS MCQ: DUAL NATURE OF RADIATION AND MATTER

1 Hard

1 of 1

Application +4 | -1

An electron (mass m) with an initial velocity

v = {v_0}\hat i

is in an electric field

E = {E_0}\hat j

. If initial wavelength

{\lambda _0} = h/m{v_0}

, then its de Broglie wavelength at time t is given by

View answer and explanation

Correct option: C

\frac{{{\lambda _0}}}{{\sqrt {1 + \frac{{{e^2}E_0^2{t^2}}}{{{m^2}v_0^2}}} }}

Option C is correct because the de Broglie wavelength changes with the electron's velocity, which is affected by the electric field.

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