Visible lights wavelength range ...................
0.39 – 0.77 µm
0.39 – 0.77 nm
0.39 – 0.77 cm
0.39 – 0.77 mm
(A) 0.39 – 0.77 µm
Explanation:
Visible light spans roughly 390–770 nm, which is 0.39–0.77 µm.
