If I have an orange shirt Explain in physics terms what happens when light hits shirt to make me
see it as orange? Why is sky red at sunset? why is sky blue? What causes thio?
Solution
Q1. We can see an object when the object reflects light from it. Light is made of different colors
(different wavelength). So when an object reflects a particular color we see the the reflection and
it appears that the object has that particulr colos. So a orange shirt reflects only the orange light
and absorbs any other colors that is why it looks orange.
Q2. The interaction of sunlight with matter can result in one of three wave behaviors: absorption,
transmission, and reflection. The atmosphere is a gaseous sea that contains a variety of types of
particles; the two most common types of matter present in the atmosphere are gaseous nitrogen
and oxygen. These particles are most effective in scattering the higher frequency and shorter
wavelength portions of the visible light spectrum. This scattering process involves the absorption
of a light wave by an atom followed by reemission of a light wave in a variety of directions. The
amount of multidirectional scattering that occurs is dependent upon the frequency of the light.
Atmospheric nitrogen and oxygen scatter violet light most easily, followed by blue light, green
light, etc. So as white light (ROYGBIV) from the sun passes through our atmosphere, the high
frequencies (BIV) become scattered by atmospheric particles while the lower frequencies (ROY)
are most likely to pass through the atmosphere without a significant alteration in their direction.
This scattering of the higher frequencies of light illuminates the skies with light on the BIV end
of the visible spectrum. Compared to blue light, violet light is most easily scattered by
atmospheric particles. However, our eyes are more sensitive to light with blue frequencies. Thus,
we view the skies as being blue in color.
Meanwhile, the light that is not scattered is able to pass through our atmosphere and reach our
eyes in a rather non-interrupted path. The lower frequencies of sunlight (ROY) tend to reach our
eyes as we sight directly at the sun during midday. While sunlight consists of the entire range of
frequencies of visible light, not all frequencies are equally intense. In fact, sunlight tends to be
most rich with yellow light frequencies. For these reasons, the sun appears yellow during midday
due to the direct passage of dominant amounts of yellow frequencies through our atmosphere and
to our eyes. As the sun approaches the horizon line, sunlight must traverse a greater distance
through our atmosphere. As the path that sunlight takes through our atmosphere increases in
length, ROYGBIV encounters more and more atmospheric particles. This results in the scattering
of greater and greater amounts of yellow light. During sunset hours, the light passing through our
atmosphere to our eyes tends to be most concentrated with red and orange frequencies of light.
F.
If I have an orange shirt Explain in physics terms what happens when .pdf
1. If I have an orange shirt Explain in physics terms what happens when light hits shirt to make me
see it as orange? Why is sky red at sunset? why is sky blue? What causes thio?
Solution
Q1. We can see an object when the object reflects light from it. Light is made of different colors
(different wavelength). So when an object reflects a particular color we see the the reflection and
it appears that the object has that particulr colos. So a orange shirt reflects only the orange light
and absorbs any other colors that is why it looks orange.
Q2. The interaction of sunlight with matter can result in one of three wave behaviors: absorption,
transmission, and reflection. The atmosphere is a gaseous sea that contains a variety of types of
particles; the two most common types of matter present in the atmosphere are gaseous nitrogen
and oxygen. These particles are most effective in scattering the higher frequency and shorter
wavelength portions of the visible light spectrum. This scattering process involves the absorption
of a light wave by an atom followed by reemission of a light wave in a variety of directions. The
amount of multidirectional scattering that occurs is dependent upon the frequency of the light.
Atmospheric nitrogen and oxygen scatter violet light most easily, followed by blue light, green
light, etc. So as white light (ROYGBIV) from the sun passes through our atmosphere, the high
frequencies (BIV) become scattered by atmospheric particles while the lower frequencies (ROY)
are most likely to pass through the atmosphere without a significant alteration in their direction.
This scattering of the higher frequencies of light illuminates the skies with light on the BIV end
of the visible spectrum. Compared to blue light, violet light is most easily scattered by
atmospheric particles. However, our eyes are more sensitive to light with blue frequencies. Thus,
we view the skies as being blue in color.
Meanwhile, the light that is not scattered is able to pass through our atmosphere and reach our
eyes in a rather non-interrupted path. The lower frequencies of sunlight (ROY) tend to reach our
eyes as we sight directly at the sun during midday. While sunlight consists of the entire range of
frequencies of visible light, not all frequencies are equally intense. In fact, sunlight tends to be
most rich with yellow light frequencies. For these reasons, the sun appears yellow during midday
due to the direct passage of dominant amounts of yellow frequencies through our atmosphere and
to our eyes. As the sun approaches the horizon line, sunlight must traverse a greater distance
through our atmosphere. As the path that sunlight takes through our atmosphere increases in
length, ROYGBIV encounters more and more atmospheric particles. This results in the scattering
of greater and greater amounts of yellow light. During sunset hours, the light passing through our
atmosphere to our eyes tends to be most concentrated with red and orange frequencies of light.
For this reason, the sunsets have a reddish-orange hue.
