a typical simple Infrared spectrophotometer which covers a wavelength range from 3 to 15um. Express it's range in

Question

(1). Wave number
(2). Hertz

Answer 1

(1) (1E-2 m / 3E-6 m) to (1E-2 m / 1.5E-5 m)

(2) (3E8 m / 3E-6 m) to (3E8 m / 1.5E-5 m)