The acceleration of electron in the first orbits of hydrogen atom is

Options

A. `(4pi^(2)m)/(h^(3))`
B. `(h^(2))/(4pi^(2)mr)`
C. `(h^(2))/(4pi^(2)m^(2)r^(3))`
D. `(m^(2)h^(2))/(4pi^(2)r^(3))`

Answer

C

Explanation

mvr `=(h)/(2pi)` ( in first orbit )
`:.v=(h)/(2pimr)rArra=(v^(2))/(r)=(h^(2))/(4pi^(2) m^(2)r^(3))`