Visible light has a range of wavelengths from about 400 nm to 800 nm. What is the range of frequencies for visible light? 7.5 x 10⁻¹⁴ a. 3.75 x 10⁶ Hz to 7.50 x 10⁶ Hz b. 3.75 Hz to 7.50 Hz c. 3.75 x 10⁻⁷ Hz to 7.50 x 10⁻⁷ Hz d. 3.75 x 10¹⁴ Hz to 7.50 x 10¹⁴ Hz