In: Physics
A light source emits a photon during a time interval of 2.89 10-8 s. (a) Find the minimum uncertainty in the photon's energy. (b) Find the minimum frequency bandwidth of the light
We have the energy-time uncertainty relation
Where h = 6.63 x 10-34 J-s is Planck's constant.
For the mentioned photon
(a) Therefore, the minimum uncertainty in energy should be
(b) We know that
( is frequency)
Therefore, the minimum frequency bandwidth of the light is