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The absolute mass of proton is...

The absolute mass of proton is

A

`9.11 xx 10^(-31) kg `

B

`1.67 xx 10^(-27) kg `

C

`1.67 xx 10^(-31) kg `

D

`9.11 xx 10^(-27) kg `

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • The mass of a proton is

    A
    1.0073 a.m.u.
    B
    `1.6726xx10^(-27)` kg
    C
    both a and b
    D
    neither a nor b

  • The absolute mass of an electron is

    A
    `9.11 xx 10^(-28) kg `
    B
    `1.11 xx 10^(-28) kg `
    C
    `1.11 xx 10^(-31) kg `
    D
    `9.11 xx 10^(-31) kg `

  • The rest mass of the deuteron, ._1^2 H , is equivalent to an energy of 1876 MeV, the rest mass of a proton is equivalent to 939 MeV and that of a neutron to 940 MeV. A deuteron may disintegrate to a proton and a neutron if it :

    A
    emits a `lambda`-ray photon of energy `2 MeV`
    B
    captures a `lambda`-ray photon of energy 2MeV
    C
    emits a `lambda`- ray photon of energy 3MeV
    D
    capture a `gamma`-ray photon of energy 3MeV

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    Determine the de Broglie wavelength of a proton, whose kinetice energy is equal to the rest of the mass energy of an electron. Given that the mass of an electron is 9xx10^(-31) kg and the mass of a proton is 1837 times as that of the electron.

    Assertion (A) : The total mass of the protons of a born atom is 6185 times the total mass of electrons. Reason (R ) : Mass of one proton is times the mass of electron.

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    Assuming that x is the mass of electron and y is the total mass of protons in ""_(8)O^(18) , which of the following equations is correct for calculating the total mass of protons?

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