Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

An electron revolves around a very long line charge having density $2 × 10^{-6} Cm^{-1}$. The kinetic energy of the electron is

Options:

$5 × 10^{-17} J$

$2.88 × 10^{-16} J$

$2.88 × 10^{-15} J$

$5 × 10^{-15} J$

Correct Answer:

$2.88 × 10^{-15} J$

Explanation:

The correct answer is Option (3) → $2.88 × 10^{-15} J$