If the total energy of an electron in a

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Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

If the total energy of an electron in a given system is E_o, what will be the kinetic energy of the electron?

Options:

-E_o

E_o

2E_o

-E_o/ 2

Correct Answer:

-E_o

Explanation:

Total energy : E = T + U

T : kinetic energy

U : Potential energy

E = \(\frac{-KZe^2}{2r}\)

T = \(\frac{KZe^2}{2r}\)

V = \(\frac{-KZe^2}{r}\)

Kinetic Energy and Total Energy is equal in magnitude but opposite in sign.