Question

(a) Calculate the frequency of a radiation of wave number 5x10⁶ m–1 ​

Answer 1

Answer:

1.5 × 10¹⁴ Hz is the frequency.

Explanation:

wavelength = 1/ wave number

wavelength = 1/(5×10⁶)

wavelength = 0.2 × 10^(-6)

frequency = speed of light/ wavelength

= 3 × 10⁸/ 0.2 × 10^(-6)

= 3/0.2 ×10⁸ × 10⁶

= 1.5 × 10¹⁴ Hz