Standing waves and microwave ovens

Thread starter pianogirl
Start date Nov 15, 2009
Tags

Microwave Standing waves Waves

AI Thread Summary

To determine the microwave frequency given a wavelength of 12 cm, the equation v = f x λ can be used, where v is the speed of light (approximately 3 x 10^8 m/s). By rearranging the formula to solve for frequency (f), it can be expressed as f = v / λ. Substituting the values, converting 12 cm to meters (0.12 m), results in a frequency of approximately 2.5 GHz. Participants encourage showing work for better assistance in solving the problem.

Nov 15, 2009

pianogirl

Homework Statement

With a wavelength of 12cm, how do I show that the microwave frequency is approx. 2.5GHz?

Homework Equations

v=f x lambda

The Attempt at a Solution

I'm confused about the wave speed bit...

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Nov 15, 2009

Delphi51

Homework Helper

Try putting the given numbers into the formula you wrote and see what happens!
We'll help you out if you show your work.

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