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An electron and a photon have the same d...

An electron and a photon have the same de Broglie wavelength. Which one of these has higher kinetic energy?

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To determine which has higher kinetic energy between an electron and a photon that have the same de Broglie wavelength, we can follow these steps: ### Step 1: Understand the de Broglie wavelength The de Broglie wavelength (\(\lambda\)) of a particle is given by the formula: \[ \lambda = \frac{h}{mv} \] where: ...
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An electron and proton have the same de-broglie wavelength. Which one of these has higher kinetic energy? Which one is moving faster?

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Knowledge Check

  • If a proton and electron have the same de Broglie wavelength, then

    A
    kinetic energy of electron `lt` kinetic energy of proton
    B
    kinetic energy of electron = kinetic energy of proton
    C
    momentum of electron = momentum of proton
    D
    momentum of electron `lt` momentum of proton
  • An electron and proton have the same de-Broglie wavelength. Then the kinetic energy of the electron is

    A
    Zero
    B
    Infinity
    C
    Equal to the kinetic energy of the proton
    D
    Greater than the kinetic energy of the proton
  • An electron with speed v and a photon with speed c have the same de-Broglic wavelength. If the kinetic energy and momentum of electron is E_(e) and P_(e) and that of photon is E_(ph) and P_(ph) respectively, then correct statement is -

    A
    `(E_(e))/(E_(ph))=(2c)/(v)`
    B
    `(E_(e))/(E_(ph))=(v)/(2c)`
    C
    `(P_(e))/(P_(ph))=(2c)/(v)`
    D
    `(P_(e))/(P_(ph))=(v)/(2c)`
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