Answer:
The wavelength is give by [tex]\lambda=\frac{c}{f}=\frac{3\times10^8}{1440\times10^6}=0.2\, meters=20 \, centimeters[/tex]
Explanation:
Using the expression [tex]c=\lambda f[/tex] isolate [tex]\lambda[/tex] to get [tex]\lambda=\frac{c}{f}[/tex]. Knowing that [tex]c=3\times 10^8 \, m/s[/tex] and [tex]f= 1440\times 10^6 Hz[/tex] and plugging these values in the [tex]\lambda[/tex] expression yields the correct answer of 20 centimeters.
