The orange light emitted from sodium lamp, which are commonly used as street light, contains two...
The orange light emitted from sodium lamp, which are commonly used as street light, contains two distinct frequencies. When the light interferes a beat frequency in observed in the brightness of the light. If the frequencies of the light emitted are 589.0nm and 589.6nm, what is the beat frequency?
Select one:
a. 0.5 Hz
b. 5 x 1014 Hz
c. 5 x 1011 Hz
d. 5 x 109 Hz
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