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The sky does not go from total darkness to day light at sunrise nor does in go from dayligh t to total darkness at the instant of sunset. Refraction of sunlight in the atmosphere gives a period of light at dawn and dusk which affects the length of the daylight hours.
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How refraction of light elongates the length of day?
When light refreacts it is slowing down,so the slower it travvels the longer we see it and the longer a day it is
How does the speed of light have to do with the length of the day?
the speed of light is the lenght of your day because the light can tell you what time it is from how dark it is and you make a gess which is probley right
Why does the length of day vary from one planet to another?
Because different planets have different diameters and spin at different rates.
What contains light-sensitive cells that changes length of days and nights?
Nothing can change the length of day and night except the normal seasonal progression.
How many months of constant day light does the south pole have?
Ignoring the effects of atmospheric refraction, the sun is above the horizon from about September 21 until about March 21, as seen from the south pole.
How refraction of light elongates the length of day?
When light refreacts it is slowing down,so the slower it travvels the longer we see it and the longer a day it is
Why does the length of day light changes from day to day as it revolve around the sun?
due to elliptical shape of earth,the size of days and night are vary
Which explains why sky appears blue on a sunny day?
Due to refraction of light.
How do you use the word refract in a sentence?
The bevel of the window made the light refract into a rainbow.
Why do distant objects ripple on a hot day?
Distance objects can be seen to "ripple" on a hot day because of refraction. As light from a distance object makes the trip to the observer, it passes through air of slightly varying densities. This causes it to "change course" to a degree, which is refraction. It is this thermally induced refraction that is responsible for the "ripple" we see, and for the mirage we sometimes hear about.
Does length of day light affect roosters being fertile?
no
What causes rotation and revolution?
Length of the day, Direction of sunrise, and change from light and day.
Does the length of day light change every 7 days?
No. It changes every day.
How does the speed of light have to do with the length of the day?
the speed of light is the lenght of your day because the light can tell you what time it is from how dark it is and you make a gess which is probley right
How much light should you let get into your eye a day?
A length of 500 m a day maximum
Why does the length of the day and night vary from planet to planet?
Because of the difference in speed of rotation of each planet.
Why do you not normally see refraction when you look across a room?
Because light is only refracted when it passes into a more or less dense medium. As the density of air is reasonably constant, refraction is not easily observable in your average room, however on a very hot day, you can see refraction in the form of heat waves, as the hotter air is less dense than the cooler air.
