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physics2460
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Hello everyone, here's a question that I have:
Imagine your eye was sensitive in wavelengths of 0.4 mm to 0.7 mm rather than 400 nm to 700 nm. In this case, your mind would identify light waves that were 0.4 mm as blue and 0.7 mm as red. What would your world look like? How would it be different that what you see now?My attempt at answering this:
In the electromagnetic spectrum the light with the wavelengths from 0.4 x 10^(-3) m
To 0.7 x 10^(-3) m corresponds to the Infrared Light whose wavelength can be from 7.5 x 10^(-7) to 10^(-3) m (750 nm to 1 mm).
If our eyes can see infrared light with its own spectrum from blue to red, the blue and red colors that we will see will correspond to different intensity of Infrared Light. There are different regions in the IR spectrum. The wavelengths from 0.4 x 10^(-3) m to 0.7 x 10^(-3) m falls into the far-infrared spectrum that ranges from 1.5 x 10^(-5) m to 10^(-3) m (15 to 1000 micrometers) which is progressively far from the visible regime.
So it is clear to me that if we see this kind of light in colors, so we'll be able to see objects that emit this kind of light with different intensity and we'll see them in colors as of regular visible light. That said, we will not see the visible light any more, only the objects that radiate the light within this range will only be available to our sight. So, what will we see then?
What emits this kind of infrared light?
Thanks a lot,
Dina
Imagine your eye was sensitive in wavelengths of 0.4 mm to 0.7 mm rather than 400 nm to 700 nm. In this case, your mind would identify light waves that were 0.4 mm as blue and 0.7 mm as red. What would your world look like? How would it be different that what you see now?My attempt at answering this:
In the electromagnetic spectrum the light with the wavelengths from 0.4 x 10^(-3) m
To 0.7 x 10^(-3) m corresponds to the Infrared Light whose wavelength can be from 7.5 x 10^(-7) to 10^(-3) m (750 nm to 1 mm).
If our eyes can see infrared light with its own spectrum from blue to red, the blue and red colors that we will see will correspond to different intensity of Infrared Light. There are different regions in the IR spectrum. The wavelengths from 0.4 x 10^(-3) m to 0.7 x 10^(-3) m falls into the far-infrared spectrum that ranges from 1.5 x 10^(-5) m to 10^(-3) m (15 to 1000 micrometers) which is progressively far from the visible regime.
So it is clear to me that if we see this kind of light in colors, so we'll be able to see objects that emit this kind of light with different intensity and we'll see them in colors as of regular visible light. That said, we will not see the visible light any more, only the objects that radiate the light within this range will only be available to our sight. So, what will we see then?
What emits this kind of infrared light?
Thanks a lot,
Dina
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