Question

Iron emits Kα X-ray of energy 6.4 keV. Calculate the times taken by an iron Kα photon to cross through a distance of 3 km.

Answer 1

Explanation:

Given: Iron ray energy=6.4 Kev

Calcium ray of energy= 3.69 Kev

We have to calculate the time taken each of those rays to travel a distance of 3 Km

Both the Ka photon and X-ray photon will take the same time that is 10μs

Answer 2

To cross via a 3 km distance, the time taken by an iron Kα photon is 10 μs.

Explanation:

It is given that  

X-ray’s energy, E = $6.4 \mathrm{keV}$.

Photo travels a distance that is measured as $d=3 \times 10^{3} \mathrm{m}$.

To cross the 3 km distance, the time taken is shown as t = Distance.

Speed = $3 \times 108 t \times 1033=10 \mu S$

It is to be noted that to cross the 3 km distance, both the x-ray and the Kα photon will consume the same time, that is, 10 μs.