An electron and a proton are moving with the same kinetic energy along the same direction, When they pass through a uniform magnetic field perpendicular to the direction of their motion, they describe circular path of the same radius. Is this statement true or false?

Explanation

To determine whether the statement is true or false, we need to analyze the motion of an electron and a proton moving with the same kinetic energy in a magnetic field.

### Step-by-step Solution:

1. **Understanding the Motion in a Magnetic Field**:
When charged particles like electrons and protons move through a magnetic field, they experience a magnetic force that acts as a centripetal force, causing them to move in circular paths.

2. **Centripetal Force and Magnetic Force**:
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