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Why is visible light called visible light?

Why is visible light called visible light?

All electromagnetic radiation is light, but we can only see a small portion of this radiation—the portion we call visible light. As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength.

How does light become visible?

Visible light is a form of electromagnetic (EM) radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves. EM radiation is transmitted in waves or particles at different wavelengths and frequencies. This broad range of wavelengths is known as the electromagnetic spectrum.

Why is visible light so important?

When all the colors are together, they make the normal “white” light that we see. Visible light is extremely important to humans, we use it TO SEE! Without light, our eyes would not be able to see images of anything. Visible light waves also make our TV, computer and cell phone screens work.

Why is the light that we see described as white light?

Objects appear different colours because they absorb some colours (wavelengths) and reflected or transmit other colours. The colours we see are the wavelengths that are reflected or transmitted. White objects appear white because they reflect all colours. Black objects absorb all colours so no light is reflected.

What Colour light is best for photosynthesis?


What is the difference between a grow light and a regular light?

Grow lights are very specifically constructed to aide in various stages of plant growth. Regular lights are made for everyday use, and although many are used for specific purposes, they all are based on human needs and consumption.

Are grow lights better than sunlight?

But many grow lights are now made specifically to cover the full spectrum. As a result, full spectrum grow lights are almost as good as sunlight! But sunlight is a lot more powerful than grow lights. A plant gets about the same amount of energy from 13 hours under a grow light as it does from six hours under the sun.