Color of Light


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Qilan Li 4I
Posts: 54
Joined: Mon Jun 17, 2019 7:23 am

Color of Light

Postby Qilan Li 4I » Sat Oct 12, 2019 1:02 am

The color of light is determined by its wavelength. Is this what establishes the relationship between the color of light and the energy level electrons jumps from and to?

Kishan Shah 2G
Posts: 132
Joined: Thu Jul 11, 2019 12:15 am

Re: Color of Light

Postby Kishan Shah 2G » Sat Oct 12, 2019 10:09 am

Yes, the color of light is determined by wavelength. This can be seen directly on page 6 in the textbook. There are something called spectral lines, which were discovered by Johann Balmer, that are light rays that are emitted when electrons are excited from one energy level to the next. The color of these lines are also determined by wavelength as well and they can be viewed for Hydrogen on page 7 in the textbook.

Joelle 3L
Posts: 50
Joined: Sat Jul 20, 2019 12:16 am

Re: Color of Light

Postby Joelle 3L » Sat Oct 12, 2019 2:15 pm

Light is made up of wavelengths of light, each with their own color. This region is visible light. In the atomic Spectra, an electric current is passed through a low-pressure sample of hydrogen gas. The electric field strips off electrons from the H2 molecules. These then form energetically excited hydrogen atoms and recombine to form H2 molecules. When white light is passed through a prism, a continuous spectrum of light results because white light consists of all wavelengths of visible radiation. When the light emitted by excited hydrogen atoms is passed through a prism, the radiation is found to consist of spectral lines


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