We know from the start that c=3×108m/s=λ⋅ν⟹λ=νc. Then we start to calculate the values as it follows
a. 10.37 Hz ⟹λa=10.37Hz3×108m/s⋅1s−11Hz=2.893×107m=289.3nm
b. 400.1 MHz ⟹λb=400.1MHz3×108m/s⋅106s−11MHz=0.750m
c. 1.91 GHz ⟹λc=1.91GHz3×108m/s⋅109s−11GHz=0.157m
d. 79 GHz ⟹λd=79GHz3×108m/s⋅109s−11GHz=3.797×10−3m=3.797mm
e. 167 MHz ⟹λe=167MHz3×108m/s⋅106s−11MHz=1.796m
Reference:
- Sears, F. W., & Zemansky, M. W. (1973). University physics.
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