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If 'm' is the mass of an electron and 'c...

If 'm' is the mass of an electron and 'c' is the speed of light, the ratio of the wavelength of a photon of energy E to that of the electron of the same energy is

A

a. `c sqrt((2m)/(E ))`

B

b. `sqrt((2m)/(E ))`

C

c. `sqrt((2m)/(cE))`

D

d. `sqrt((m)/(E ))`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • The wavelength 2, of an electron and 2, of a photon of same energy E are related by

    A
    `gamma_ppropgamma_e`
    B
    `gamma_ppropsqrt(gamma_e)`
    C
    `gamma_pprop1/(sqrt(gamma_e))`
    D
    `gamma_ppropgammaoverset2undersete`

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    A
    4125 nm
    B
    4125nm
    C
    412.5 nm
    D
    4 nm

  • What is the energy of a photon of wavelength 6000Å

    A
    `3.3 xx 10^(-10) J`
    B
    ` 4.4 xx 10^(-19)J`
    C
    `3.3 xx 10^(-19)J`
    D
    `4.4 xx 10^(-10)J`

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