A radioactive nucleus initially at rest decays by emitting an electron and neutron at right angles to one another. The momentum of the electron is kg m/s and that momentum of the neutron is kg m/s. The direction of the recoiling nucleus with that of the electron motion is |
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A radioactive nucleus initially at rest decays by emitting an electron and neutron at right angles to one another. The momentum of the electron is kg m/s and that momentum of the neutron is kg m/s. The direction of the recoiling nucleus with that of the electron motion is |
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a) |
b) |
c) |
d) |
(a)
kg/s
According to law of conservation of momentum, the residual nucleus must move in a direction just opposite to that of as shown in the figure. Hence, direction of the recoiling nucleus with that of the electron motion