An evacuated tube uses an accelerating voltage of 21 kv to accelerate electrons to hit a copper plate and produce x-rays. how much voltage would be required to cause protons to reach the same speed an electron reaches? (we don't worry that the protons would be going in the opposite direction) group of answer choices

Explanation:

It is given that,

Voltage to accelerate electrons to hit a copper plate and produce X-rays,

Using the conservation of energy for the electrons as :

m is the mass of electron

For the proton, mass,

Now using the conservation of energy for the protons. We get :

Hence, this is the required solution.

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beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge