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Dual Nature of Radiation and Matter question

2018 · Q133
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Dual Nature of Radiation and Matter question

2018 · Q133

NEETPhysicsDual Nature of Radiation and MatterMCQ+4 / −1
An electron of mass m with an initial velocity v→=v0i^\overrightarrow v = {v_0}\widehat iv=v0​i (v0 > 0) enters an electric field E→=−E→0i^\overrightarrow E = - {\overrightarrow E _0}\widehat iE=−E0​i (E0 = constant > 0) at t = 0. If λ\lambdaλ0 is its de-Broglie wavelength initially, then its de- Broglie wavelength at time t is
  1. A
    λ0(1+eE0mv0t){{{\lambda _0}} \over {\left( {1 + {{e{E_0}} \over {m{v_0}}}t} \right)}}(1+mv0​eE0​​t)λ0​​
  2. B
    λ0(1+eE0mv0t){{\lambda _0}\left( {1 + {{e{E_0}} \over {m{v_0}}}t} \right)}λ0​(1+mv0​eE0​​t)
  3. C
    λ\lambdaλ0t
  4. D
    λ\lambdaλ0
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