physics....

posted by .

Suppose that the inside length of a microwave oven is 30 cm. If the length of a microwave oven is one half of the wavelength of microwaves used by the oven, find the frequency of the microwaves used in the oven.

What is the equation that relates the three of these???

• physics.... -

Microwaves travel at the speed of light.

You must have seen this equation before for electromagnetic radiation:
(wavelength) * (frequency) = (speed of light)

Rewrite that as

2*(Microwave length)*(frequency) = 3*10^10 cm/s

Solve for the frequency

f = 5.00^10^8 Hz = 0.5 GHz

Actually, microwave ovens use a higher frequency than that.

Respond to this Question

 First Name School Subject Your Answer

Similar Questions

1. CHEMISTRY

I don't even understand how this question works. How do I solve it?
2. physics

What is the frequency of the microwaves in a microwave oven?
3. chemistry

Your 1.1 cubic foot GE microwave oven generates 1100 watts of microwaves at a frequency of 2.45 GHz. a. What is the wavelength of the microwave radiation being emitted?
4. Chemistry

A certain microwave oven delivers 633 watts (J/s) of power to a coffee cup containing 53.1 g of water at 25°C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, and how many photons must be absorbed, to …
5. FACS

The what of a microwave oven is the amount of electricity used to create microwaves?
6. Physics

A particular microwave oven operates at 1000W. The wavelength of the microwave is 12.0cm. You decide that you like your snack to absorb 1.2 x 10^28 photons. For how much time should you have the oven on- with your snack inside of course. …
7. chemistry

A microwave oven heats by radiating food with microwave radiation which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 0.250 liter of water was placed in the oven …
8. chemistry

A microwave oven heats by radiating food with microwave radiation which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 0.250 liter of water was placed in the oven …
9. chemistry

A certain microwave oven delivers 800. watts (J/s) of power to a coffee cup containing 45.0 g of water at 25.0°C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, and how many photons must be absorbed, …
10. Chemistry

Microwaves, such as those used for radar and to heat food in a microwave oven, have wavelengths greater than about 3 mm. What is the frequency of radiation of wavelength 13.82 mm?

More Similar Questions