1.

A neutron , an electron, a proton and an alpha particle are moving with the same kinetic energy. Which of the following is correct order of their speeds?

A. Alpha Particle, Neutron, Proton, Electron
B. Electron, Proton , Neutron, Alpha Particle
C. Alpha Particle, Proton, Neutron, Electron
D. Neutron, Proton, Alpha Particle, Electron
Answer» B. Electron, Proton , Neutron, Alpha Particle


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