Why does white light have a higher frequency than microwave??

Question

It would be a great help if you could help me!! Thanks.

Answer 1

There is no why.
That what we agreed to call them.

Answer 2

White light is not a single frequency. Rather, white light contains every frequency humans can see, all present simultaneously.

Microwaves are simply light with a lower frequency, one that is outside humans' visibility range. Radio waves have an even lower frequency.

You can see the 'complete' spectrum here:
http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html

I say 'complete' because the frequency really extends from 0 to infinity, but anything you're likely to run into will be on this chart.

Answer 3

Because Microwaves have longer wavelengths..


I'm not being flippant.
C=F(I don't know how to type a lambda)

The speed of electromagnetic radiation is = to the frequency times the wavelength and since C is constant for both visible light and microwaves the frequency of one is higher because the wavelength is shorter.

The frequency is lower when the wavelength is longer

Answer 4

There is no white light frequency.
White light is a meddley of waves with different frequencies.
Yes all of them are much higher than microwave frequency but it is just because microwave frequency was chosen to be much lower. And it is chosen so that this frequency waves can penetrate deeper inside your food and warm it not just on surface. Waves of visible light frequency can penetrate just by the depth of your skin and nearly useless to cook, though you can use laser light of high intensity to burn holes in your dishes:)

Answer 5

Because the frequency, if what you say is true, is higher with white light. Other types of frequencies display other types of phenomenon. Light with no frequency seems to display nothing. Pretty sure this doesn't help much, but at least you know people are out there trying to answer your question regardless if it helps you or not. .

Answer 6

That's just the way it works I'm afraid.

Microwaves-as in microwave ovens-work by rapidly vibrating the molecules within the food and thereby heating them. There is a limit to how fast the molecules can be vibrated however, if we tried to do it with visible light the molecule wouldn't have time to vibrate in one direction before it was pulled back again-hence no vibration.

Answer 7

White light represents the range of electromagnetic radiation that our eyes can perceive. It encompasses wavelengths of ~400-700 nm, whereas microwaves have wavelengths between ~1-100 cm. Since the speed of light is constant, as wavelength increases, frequency decreases.

Answer 8

There isn't any reason. Different forms of eletromagnetic radiation just have different wavelengths. It's nature. Besides, there's no such thing as white light. Electromagnetic radiation only comes in the visible light spectrum of red to blue.

Regards,
Jeebus