1.

An X-ray tube operates on 30 kV. The minimum wavelength emitted is h = 6.6 xx 10^(-34) Js, c = 3 xx 10^(8) m/s, e = 1.6 xx 10^(-19)C.

Answer»

6.6 `Å`
0.133 `Å`
1.2 `Å`
0.4 `Å`

SOLUTION :`lambda_(min) = (hc)/(eV) = (6.6 xx 10^(-34) xx 3 xx 10^(8))/(1.6 xx 10^(-19) xx 30 xx 10^(3)) m = 0.4 xx 10^(-10) m = 0.4 Å`


Discussion

No Comment Found

Related InterviewSolutions