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Q. 38

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 1060

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Short Answer

At what speed, as a fraction of , must an electron move so that its total energy is more than its rest mass energy?

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Step by Step Solution

Step 1: Given Information

We have given that,

Total energy is more.

Step 2: Simplify

Given values are: and total energy is more.

To find the speed , we use the below given formula.

Now, put the given values in the above formula to find the speed.

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