Question

The electron in hydrogen atom is revolving with the speed of 2.2 × 10⁶ m/s in an orbit of radius 0.53 Å. Calculate the initial frequency of light emitted by the electron using classical physics.

Answer 1

V = 2.2 × 10⁶ m/s, r = 0.53 Å = 0.53 × 10⁻¹⁰ m

`f = 1/T`

`"Time" = "distance"/"speed" = d/V = (2pir)/V`

= `V/d = V/(2pir)`

= `(2.2 xx 10^6)/(2 xx 3.14 xx 0.53 xx 10^-10)`

= `2.2/3.32 xx 10^16`

f = 6.6 × 10¹⁵ Hz