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A particle of mass 1 mg has the same wav...

A particle of mass `1 mg` has the same wavelength as an electron moving with a velocity of `3 xx 10^(6) ms^(-1)`. The velocity of the particle is

A

`2.7 xx 10^(-18) ms^(-1)`

B

`9xx10^(-2) ms^(-1)`

C

`3 xx 10^(-31) ms^(-1)`

D

`2.7 xx 10^(-21) ms^(-1)`

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Knowledge Check

  • A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of 3xx10^(6)ms^(-1) . The velocity of the particle is (mass of electron =9.1xx10^(-31)kg )

    A
    `2.7xx10^(-21)ms^(-1)`
    B
    `2.7xx10^(-18)ms^(-1)`
    C
    `9xx10^(-2)ms^(-1)`
    D
    `3xx10^(-31)ms^(-1)`

  • A particle of mass 1mg has the same wavelength as an electron moving with a velocity of 3xx10^6 ms^(-1) . What is the velocity of the particle ? (Take mass of the electron =9xx10^(-31) kg )

    A
    `2.7xx10^(-21) m//s`
    B
    `2.7xx10^(-18) m//s`
    C
    `3.5xx10^(-17) m//s`
    D
    `9xx10^(-5) m//s`

  • The wavelength of an electron moving with velocity of 10^(7)ms^(-1) is

    A
    `7.27xx10^(-11)`m
    B
    `3.55xx10^(-11)`m
    C
    `8.25xx10^(-4)`m
    D
    `1.05xx10^(-16)`m
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