Question

3. The wavelength range of the visible spectrum extends
from 500nm to 800nm. Express these wavelength in
frequencies (Hz). (1nm= 10-ºm)​

Answer 1

Answer:

6×10¹⁴ Hz to 3.75×10¹⁴ Hz

Explanation:

v {frequency} = speed of light ÷ wavelength

for , wavelength = 500nm = 500× 10-⁹

v = 3 × 10⁸ ÷ 5 × 10-⁷

v = 6 × 10¹⁴ Hz

for wavelength => 800nm = 800×10-⁹

v = 3×10⁸ ÷ 8 × 10-⁷

v = 3.75 × 10¹⁴