Question

Light has a wavelength of 34.4 nm. What is its frequency?

Answer 1

Answer: 8.69 × 10⁻¹ Hz

Explanation:

Frequency = Speed of Light ÷ Wavelength

= (2.99 × 10⁸ m/s) ÷ (3.44 × 10⁻⁸ m)

= 8.69 × 10⁻¹ Hz

The frequency of a light of wavelength 34.4 nm is 8.69 × 10⁻¹ Hz.

Notes:

Hz ≡ /s

1 m = 10⁹ nm