a) An electron has been accelerated through an electrical potential of 50 kev from rest. What...
a) An electron has been accelerated through an electrical potential of 50 kev from rest. What is the kinetic energy of the electron in Joules?
A) 8 E-15 J
B) 4 E-20 J
C) 8 E 15 J
D) Not enough information
b) The electron from question 1 encounters a nucleus and undergoes a elastic collision that alters its' trajectory. After the collision the electron has a kinetic energy of 40 kev.
What is the frequency of the photon that is produced?
A) 2.42E18 Hz
B) 2.43E-18 Hz
C) 25 Hz
D) 1E 31 Hz
c) Refer back to question 2. What kind of photon (visible, Ultraviolet, Gamma ray, ect) is emitted? Hint: calculate the wavelength it may be easier to find the answer.
A) X-ray
B) Gamma ray
C) Red light
D) Radio wave
Homework Answers
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