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What are alpha-particles?...

What are `alpha`-particles?

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An `alpha`-particle is a doubly ionised helium atom.
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Knowledge Check

  • A positively-charged particle (alpha-particle) projected towards west is deflected towards north by magnetic field. The direction of magnetic field is :

    A
    towards south
    B
    towards east
    C
    downward
    D
    upward

    • Similar Questions

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    A neutron, a proton, an electron and an alpha particle enter a region of constant magnetic field with equal velocities. The magnetic field is along the inward normal to the plane of paper. The tracks of the particles are labelled in Fig. SAQ 11. which of the tracks show the path of the electron and alpha-particles ?

    For a given kinetic energy, which of the following has the smallest de-Broglie wavelength , electron, protons or alpha -particles ?

    What are beta particles?

    What is the mass of an alpha -particle ?

    In Rutherford alpha-particl es scattering experiments, why most of alpha-particl es pass almost unscattered?

    The ratio of specific charge of a proton and an alpha-particle is :

    One mole of alpha -particles are trapped inside a closed box. Find the number of electric field lines emanating from the alpha -particles.

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