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The mass of an electron is 9.1xx10^(-31)...

The mass of an electron is `9.1xx10^(-31)kg`. If its K.E. is `3.0xx10^(-25) J`, calculate its wavelength

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To calculate the wavelength of an electron given its mass and kinetic energy, we can follow these steps: ### Step 1: Write down the given values - Mass of the electron, \( m = 9.1 \times 10^{-31} \, \text{kg} \) - Kinetic Energy, \( KE = 3.0 \times 10^{-25} \, \text{J} \) ### Step 2: Use the kinetic energy formula to find the velocity The kinetic energy (KE) of an object is given by the formula: ...
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The mass of an electron is 9.1 xx 10^(-31) kg . If its K.E. is 3.0 xx 10^(-25)J , calculate its wavelength

The mass of an electron is 9.1 xx 10^(-31)J , if its K.E. is 3.0 xx 10^(-25)J . Calculate its wavelength.

Knowledge Check

  • The mass of an electron is 9.1xx10^-31 kg and its velocity is 812 me^-1 . calculate its wavelength.

    A
    89.67nm
    B
    8.967 nm
    C
    896.7 nm
    D
    0.8967 nm

  • The mass of an electron is 9.1xx10^(-31) kg and velocity is 2.99xx10^(10) cm s^(-1) . The wavelenth of the electron will be

    A
    0.243 `"Å"`
    B
    0.0243 `"Å"`
    C
    4.21 `"Å"`
    D
    0.421 `"Å"`

  • The wave length of a electron with mass 9.1 xx 10^(-31)kg and kinetic energy 3.0 xx 10^(-25)J is

    A
    `89.67nm`
    B
    `8.96nm`
    C
    `456.7nm`
    D
    `896.7nm`

    • Similar Questions

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    If the kinetic energy of an electron of mass 9.0xx10^(-31) kg is 8xx10^(-25)J ,t he wavelength of this electro in nm is:

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