Question

An electron and a proton with equal momentum enter perpendicularly into a uniform magnetic field, then

• A. The path of proton shall be more curved than that of electron
• B. The path of proton shall be less curved than that of electron
• C. Both are equally curved
• D. Path of both will be straight line

Answer 1

The correct option is C Both are equally curved

$r=\frac{mv}{qB}$

Since both have same momentum, therefore the circular path of both will have the same radius.