Answer:
1.36 x 10^12 m
Explanation:
This is because the equation for wavelength is a modification of c = λf.
c is the speed of light, which is 3.00 x 10^8 m/s
2.20 x 10^-4 Hz is the frequency (f)
so to find λ, which is the wavelength, you would have to divide c by f. You would write it out like 3.00 x 10^8 m/s divided by 2.20 x 10^-4 1/s (Hz is a unit whose time is measured in seconds). The s would cancel out, you would divide 3.00 by 2.20, and you would apply the rule of exponents to the 10^8 power divided by 10^-4 for 10^12 power because the -4 is the denominator, and because it is negative, instead of subtracting the exponent you would add it