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LEss than a 45 degree angle
it decreases... that's why the two poles are the coldest places on earth... however, considering the earth is a sphere the angle you are talking about is relative to the point on earth which you are referring to... therefore, there will always be a point on the earth's surface where the suns rays are hitting at exactly 90 degrees...
If the sun's rays hit the Earth's surface at a direct spot, which is usually around the equator, that area would be the warmest. Any area that is far away from the sun's rays is usually cold.
If the sun's rays hit the Earth's surface at a direct spot, which is usually around the equator, that area would be the warmest. Any area that is far away from the sun's rays is usually cold.
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Oblique
the Earth's tilted axis.
the Earth's tilted axis.
How does the angle of light affect the temperature of a surface?
Usually, as the angle of incidence of the sun's rays decrease (i.e. when the sun is nearer to the horizon than to the zenith) the temperature decreases.
Sunbeams do NOT strike the Earth's surface at the same angle. Like dusk some places have an angular strike during the winter months. This is the main reason we have seasons.
LEss than a 45 degree angle
it decreases... that's why the two poles are the coldest places on earth... however, considering the earth is a sphere the angle you are talking about is relative to the point on earth which you are referring to... therefore, there will always be a point on the earth's surface where the suns rays are hitting at exactly 90 degrees...
The angle of reflection equals the angle of incidence. In regular reflection, parallel rays strike are reflected from smooth surface at the same angle in diffuse reflection, parallel rays strike and are reflected from a bumpy surface at different angles.
pie
pie
If the sun's rays hit the Earth's surface at a direct spot, which is usually around the equator, that area would be the warmest. Any area that is far away from the sun's rays is usually cold.