Question

In any Bohr orbit of hydrogen atom, the ratio of K.E to P.E of revolving electron at a distance 'r' from the nucleus is ______.

विकल्प

• -1

• `-1/2`

• `+1/2`

• 1

Answer 1

In any Bohr orbit of hydrogen atom, the ratio of K.E to P.E of revolving electron at a distance 'r' from the nucleus is `underline(-1/2)`.

Explanation:

kinetic energy `k=1/(8pi in_o)*e^2/r`

Potential energy `"P"=-1/(4pi in_o)*e^2/r`

`thereforek/"P"=-1/2`