Question

A microwave has a frequency of 300,000 hz. calculate the wavelength

Answer 1

Answer:

$\huge\boxed{\sf \lambda = 1,000 \ m}$

Explanation:

Given Data:

Frequency = f = 300,000 Hz = 3 × 10⁵ Hz

Speed of light = c = 3 × 10⁸ ms⁻¹

Required:

Wavelength = λ = ?

Formula:

$\displaystyle \lambda = \frac{c}{f}$

Solution:

$\displaystyle \lambda = \frac{3 \times 10^8}{3 \times 10^5} \\\\\lambda = \frac{10^8}{10^5} \\\\\lambda = 10^{8-5}\\\\\lambda = 10^3 \ m\\\\\lambda = 1,000 \ m\\\\\rule[225]{225}{2}$