NEET Solved Paper 2019 Question 37

Question: The total energy of an electron in an atom in an orbit is -3.4 eV. Its kinetic and potential energies are, respectively- [NEET 5-5-2019]

Options:

A) 3.4 eV, - 6.8 eV

B) 3.4 eV, 3.4 Ev

C) - 3.4 eV, - 3.4 eV

D) - 3.4 eV, - 6.8 eV

Show Answer

Answer:

Correct Answer: A

Solution:

Total energy = - [K.E]

$ \therefore K.E.=+3.4eV $

Potential energy= -2 (Total energy) = -6.8 eV