Question

An electron, proton, deuteron and$\alpha$ particle enter in a uniform electric field with the same velocity as shown. The greatest deviation is shown by

• A. electron
• B. proton
• C. deuteron
• D. $\alpha$- particle

Answer 1

The correct option is D $\alpha$- particle

$p=qE$

$\therefore \alpha$ particle has greatest charge

$\therefore$ it will show greatest deviation

Hence,

option $D$ is correct answer.