Question
. Microwave ovens typically cook food using microwaves with a frequency of about $3.00 \mathrm{GHz}$ (gigahertz, $10^9 \mathrm{~Hz}$ ). Show that the wavelength of these microwaves traveling at the speed of light is $10 \mathrm{~cm}$.
Step 1
Step 1: Use the formula for the speed of light, which is $c = f \lambda$, where $c$ is the speed of light, $f$ is the frequency, and $\lambda$ is the wavelength. Show more…
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Microwave ovens use a frequency of light equal to 2.45 GHz (1 GHz = 10^9 Hz). If the radiation forms a standing wave in the oven, what is the distance between nodes and antinodes in centimeters? The speed of light is 3 * 10^8 m/s.
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Microwaves travel at the speed of light, $3.00 \times 10^{8} \mathrm{m} / \mathrm{s}$ When the frequency of microwaves is $9.00 \times 10^{9} \mathrm{Hz}$ what is their wavelength?
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