Answer to Question #106738 in General Chemistry for Lupe

Question

Wavelength of red light is 700.5nm what’s the frequency?

Answer 1

428 ТHz

ν = с/λ, where

λ = wavelength, m

ν = frequency, Hz

c = speed of light

c = 3*10⁸ m/s

λ = 700.5 nm = 700.5*10^-9 m

then ν = 3*10⁸/700.5*10^-9 = 4.28*10¹⁴ Hz = 428*10¹² Hz = 428 THz