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X-Rays. Help Me To Solve This Question.?
An X-ray tube is operated at 50kV.
a) Find the highest frequency for emitted radiation
b) How Much heat is produced by each accelerated electron that does not produce an X-Ray
1 Answer
- 1 decade agoFavorite Answer
Units
C - coulomb
m - meters
s - seconds
J - joule
kg - kilograms
Volts - potential - units volts
Hz - 1/s - Hertz
X - times or multiplication
Constants and Given
q = 1.602 X 10 ^ -19 C (electron charge)
Volts = 50kv = 50000V
h = 6.626 * 10 ^ -34 J X s (planks constant)
Assumptions
Electron's maximum potential energy is conserved
Calculating potential energy
U = q * Volts
U = 8.01 X 10 ^ -15 J
Frequency of Photons
f = U / h
f = 1.209 X 10 ^ 19 Hz
Heat produced equals maximum potential or 8.01 X 10 ^ -15 J because of energy conservation.
