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Properties of Light

Posted: Fri Oct 12, 2018 10:28 pm
by Jasmine Reddy DIS 1E
How is the intensity of a wave/light source measured?

Also, for our purposes, how are we defining "energy"?

Re: Properties of Light

Posted: Fri Oct 12, 2018 11:23 pm
by Jonathan Omens 1K
The intensity of a source of light is the number of protons that come from the source. This is different from the energy of the light wave, which is dependent on the frequency of the wave, hence the equation: E=hv.

Re: Properties of Light

Posted: Sat Oct 13, 2018 1:15 pm
by ArielKim3C
Put in other words, the intensity of a wave is also measured by its amplitude.

Re: Properties of Light

Posted: Sat Oct 13, 2018 2:58 pm
by Henry_Phan_4L
Energy is higher when the wavelength is smaller or the frequency is higher.

Re: Properties of Light

Posted: Sat Oct 13, 2018 7:05 pm
by Angel Chen 2k
The intensity of a light source is measured as the square of the amplitude of the wave, which is the height above the centerline of light waves.

Re: Properties of Light

Posted: Sat Oct 13, 2018 7:59 pm
by Sapna Ramappa 1J
The intensity of a light source can be determined by looking at the amplitude of the wave, whereas the energy of the light wave can be determined using the equation E = h*v (E is energy in Joules, h is Planck's constant, and v is velocity of the wave).