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Select one: a. Energy is not conserved in beta decay reactions. b. The proton mu

ID: 1771931 • Letter: S

Question

Select one:

a. Energy is not conserved in beta decay reactions.

b. The proton must travel faster than the electron.

c. Kinetic energy is conserved.

d. Momentum is not conserved in beta decay reactions.

e. There must be a missing, unseen particle that was produced in the decay.

Later in the course we'll learn about radioactivity. The image below shows one type of decay that we'll learn: a neutron transforms into a proton + electron (these are the three basic types of particles in the atom). This process is called beta decay Before After Il The image above is basically what people saw. The arrows indicate the velocity of the electrona proton after the decay of a stationary neutron. Given the widespread success of the conservation of energy and momentum theories in all areas of physics, what should one reasonably and logically deduce about the above nuclear decay process?

Explanation / Answer

As there is no external force acting on the system of particles , momentum must be conserved.. So there must be one particle missing which must come into picture to conserve momentum of the system. So option E is the correct answer.

Further explanations: initially neutron is at rest. V = 0 , so momentum = 0 ,

After activity , we can see there ia an unbalanced momentum and so vector sum of momentum after is not zero in the picture. Which the reason we can expect one more particle . I hope this was helpful . Thank you

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