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Calculate de-Broglie wavelength associat...

Calculate de-Broglie wavelength associated with a rifle bullet of mass 2 gram moving with a speed of `400 ms^(-1)`.

Text Solution

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`lambda=(h)/(mv)`
`lambda=(6.625xx10^(-34))/(2xx10^(-3)xx400)`
`lambda-8.281xx10^(-34)`m
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Calculate de Broglie wavelength associated with an electron moving with a speed of 2 xx 10^(5) ms^(-1) . Given h = 6.625 xx 10^(-34) Js, m_(e) = 9.11 xx 10^(-31) kg .

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Knowledge Check

  • de-Broglie wavelength associated with an electron having kinetic energy 500 eV is :

    A
    `0.55Å`
    B
    `0.69Å`
    C
    `0.78Å`
    D
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  • The wavelength associated with a ball of mass 100 g moving with a speed of 10^(3) cm "sec"^(-1) ( h=6.6xx10^(-34)Js^(-1) ) is

    A
    `6.6xx10^(32)cm`
    B
    `6.6xx10^(-27)cm`
    C
    `6.6xx10^(27)cm`
    D
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  • The wavelength associated with a golf ball weighing 200 g and moving at a speed of 5 m/h is of the order

    A
    `10^(-10) m`
    B
    `10^(-20) m`
    C
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    D
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