A state trooper’s car sends out a radar signal at a frequency of 7.91 GHz. Find the wavelength of this signal.?
A state trooper’s car sends out a radar signal
at a frequency of 7.91 GHz.
Find the wavelength of this signal. The
wave speed is 2.998 × 10^8 m/s.
Answer in units of m
What is the period that corresponds to a
frequency of 85 Hz?
Answer in units of s
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Verified answer
a) speed of light=wave*freq.
3E8=wave*7.91E9
wave=.038m
b) period=1/f=1/85=.012s