Question

What is the wavelength of a light wave with a frequency of 2.5 x 10¹4 Hz?

Answer 1

`\huge\boxed{\sf \lambda = 1.2 * 10^(-6) \ m}`

Step-by-step explanation:

Given data:

Frequency = f = 2.5 × 10¹⁴ Hz

Speed of light = c = 3 × 10⁸ m/s

Required:

Wavelength = λ = ?

Formula:

`\displaystyle \lambda = (c)/(f)`

Solution:

Put the given data in the above formula.

`\displaystyle \lambda = (3 * 10^8)/(2.5 * 10^(14)) \\\\\lambda = 1.2 * 10^(8-14)\\\\\lambda = 1.2 * 10^(-6) \ m\\\\\rule[225]{225}{2}`