Answer:
B.) 3.85 x 10⁻⁷ m
Explanation:
To find the wavelength, you can use the following formula:
wavelength = speed of light / frequency
Since you have been given both the speed of light and frequency, you can plug these values into the equation to find wavelength.
wavelength = speed of light / frequency
wavelength = (3.00 x 10⁸ m/s) / (7.80 x 10¹⁴ Hz)
wavelength = 3.85 x 10⁻⁷ m
