Assertion: Electrons in the atom are held due to coulomb forces.
Reason: The atom is stable only because the centripetal force due to Coulomb's law is balanced by the centrifugal force.

Options

A. if both assertion and reason are true and reason is the correct explanation of assertion.
B. if both assertion and reason are true but reason is not the correct explanation of assertion.
C. if assertion is true but reason is false.
D. if both assertion and reason are false.

Answer

C

Explanation

According to postulates of bohr's atom model, the electron revolve round the nucleus in fixed orbit of deinite radii. As long as the electron is in a certain orbit, it does not radiate any energy. Not only the centripetal force has to be centrifugal force, even the stable orbits are fixed by borh's theory.