6. Consider an oscillator which has a charged particle and oscillates about its mean position
with a frequency of 400 Hz. The wavelength of electromagnetic waves produced by this
oscillator is
a 7.5 x10⁵ Hz
b. 8.5x10⁵ Hz
c. 7x10-⁵ Hz
d. 8.5x10-⁵ Hz
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Answer:
I think letter A. 7.5×10^5 Hz