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Alpha particles are...

Alpha particles are

A

protons

B

charged helium atoms

C

positron

D

electrons.

Text Solution

Verified by Experts

The correct Answer is:
B
Alpha particles are helium nuclei (or charged He atom).
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Knowledge Check

  • A proton and an alpha particle are accelerated through the same potential difference. The ratio of the wavelengths associated with the proton to that associated with the alpha particle is

    A
    4
    B
    2
    C
    `sqrt(8)`
    D
    `(1)/(sqrt(8))`

  • The (B.E)/(A) for deutron and an alpha -particle are X_(1) and X_(2) respectively. The energy released alpha -particle is

    A
    `4(X_(2)-X_(1))`
    B
    `2(X_(2)-X_(1))`
    C
    `4(X_(2)+X_(1))`
    D
    `(X_(2)-X_(1))/(4)`

  • The alpha -particle are

    A
    high energy electrons
    B
    positively charged hydrogen ions
    C
    high energy `alpha`-radiation
    D
    doubly positively charged helium nuclei

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