Question

a microwave has a frequency of 90 ghz, which is the same as 9.0×10¹⁰ hz. what is the energy of electromagnetic radiation from the microwave? h = 6.626×10⁻³⁴ j·s

Explanation:

Step1: Use the formula for energy of a photon

The formula for the energy of a photon is \(E = h
u\), where \(h\) is Planck's constant (\(h = 6.626\times10^{-34}\space J\cdot s\)) and \(
u\) is the frequency of the electromagnetic radiation.

Step2: Substitute the given values into the formula

Given \(
u=9.0\times 10^{10}\space Hz\) and \(h = 6.626\times10^{-34}\space J\cdot s\).

$$
LATEXBLOCK0
$$

Answer:

\(5.9634\times 10^{-23}\space J\) (rounded to two significant figures: \(6.0\times 10^{-23}\space J\))