Multiple Choice
Indicate which of the following sources produces the lowest energy photons.
A) a radio station with 106.7 MHz
B) a dentist's X-ray source with 100 pm
C) the laser in a CD player with 650 nm
D) a microwave oven with 6.0 Hz
E) your cell phone with 1.750 GHz
Correct Answer:

Verified
Correct Answer:
Verified
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