An electron of mass m is moving in an electric field E = -2E₀i (E₀ = constant > 0), with an initial velocity V = v₀i (v₀ = constant > 0). If λ₀ = h/4mv₀, its de Broglie wavelength at time t is _ _ _ _. (e = charge of electron)

(C) (4λ₀)/([1+2E₀e/mt/v₀])

(A) (4λ₀)/([1-E₀e/2mt/v₀])

(B) (4λ₀)/([1+E₀e/2mt/v₀])

(D) (4λ₀)/([1-2E₀e/mt/v₀])

Dual Nature of Matter and Radiation: JEE Main 2026 Physics question

JEE Main 2026 · 5 Apr, Morning shift · Q35

JEE Main 20265 Apr, Morning shiftPhysicsMediumDual Nature of Matter and Radiation146× since 2002

An electron of mass

m

is moving in an electric field

\vec{E} = -2E_0\hat{i}

(

E_0

= constant

> 0

), with an initial velocity

\vec{V} = v_0\hat{i}

(

v_0

= constant

> 0

). If

\lambda_0 = \frac{h}{4mv_0}

, its de Broglie wavelength at time

t

is _______. (

e

= charge of electron)

JEE Main 2026 Dual Nature of Matter and Radiation Question with Solution (5 Apr Morning shift, Q35) | JEE Arc

JEE Main 2026 · 5 Apr, Morning shift · Q35

JEE Main 20265 Apr, Morning shiftPhysicsMediumDual Nature of Matter and Radiation146× since 2002

An electron of mass

m

is moving in an electric field

\vec{E} = -2E_0\hat{i}

(

E_0

= constant

> 0

), with an initial velocity

\vec{V} = v_0\hat{i}

(

v_0

= constant

> 0

). If

\lambda_0 = \frac{h}{4mv_0}

, its de Broglie wavelength at time

t

is _______. (

e

= charge of electron)