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Why does red light use more energy than blue light?

Updated: 8/20/2019
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11y ago

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no red uses more energy

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11y ago
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Q: Why does red light use more energy than blue light?
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Does blue light have a greater speed than red light?

Blue light is diffracted more than red. The way I remember is by thinking about the waves being closer together in the blue light and knowing that each wave interacts with the whatever is causing the diffraction (grating or object). More waves in a given area means more interaction which means more diffraction.


Does blue light carry more energy per photon than red light?

Yes it does.


Will bright blue light eject more electrons than dim light of the same frequency?

Brighter light has more energy.


Is a Bunsen burner flame is easy to see when it is yellow or blue?

It is easier to see when it is yellow. It produces more heat energy and less light energy when it is blue. The yellow flame produces more light energy than heat energy. That makes it more visible


Why does red absorb more light than blue?

Red does as it absorbs photons at blue end of the spectrum( the higher energy) and reflects light at the red end of the spectrum (a lower energy). While the blue light absorbs energy at the red end of the spectrum and reflects blue light


Which part of the visible light has most energy?

The blue part of the spectrum has more energy than the red part.


Why is red light different to blue light?

The red light is lower energy than the blue light.


Which color of light has more energy blue or red?

Blue light has more energy.Using the formula:photon energy (E) = Planck constant (h) * frequency (ƒ) Blue has a higher frequency than red. Since h is constant, E increases as ƒ increases.Using the formula:photon energy (E) = Planck constant (h) * speed of light (c) / wavelength (λ)Blue has a shorter wavelength than red. Since h and care considered constant, E increases as λ decreases.


How can you tell the energy released based on the colour of the light?

Red light has lower energy photons than blue light. Ultra-violet is even more energetic.


Why is the blue star hotter?

When a star is blue it means it is putting out light mostly in the ultraviolet spectrum which is of a higher energy than infared light, or light in the visible spectrum. This means the star has more energy and heat.


Which has greatest frequency yellow light or green light?

Blue and yellow colors make green color. Blue has got more energy than yellow color. So green color will have more energy than yellow color. Hence proved.


Could you emit the same amount of light energy per second which must emit more photons per second a source of red light or a source of blue light?

Red light has less energy per photon than blue light, so to get the same energy we would need more red photons.