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If the question is "What measures of distance are used with (visible) light?" Light is normally measured either in Angstroms, which are ten-billionths of a meter, or, more commonly today, in nanometers, which are one-billionths of a meter. Red light is around 700-690 nanometers (some claim all the way to 760 nm) and the wavelengths get shorter as the colors get "cooler" (that's psychologically cooler; they are actually getting more energetic). Around 400-390 nm they slip into the ultraviolet and we can no longer see them.
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What colors of light reach the trees from the Sun?
Trees receive red, green, and blue light from the Sun, which are the primary colors needed for photosynthesis. These colors are absorbed by the chlorophyll in the leaves, helping the trees convert light energy into chemical energy.
How long for burst of light from sun to reach earth?
Once the light reaches the surface of the Sun, it takes approximately 8 minutes and 20 seconds to reach Earth. This can be calculated by dividing the distance to the Sun by the speed of light: 150,000,000 km / (300,000 km/second).
How do they time the time it takes for the light coming from the sun to reach the earth?
Scientists measure the time it takes for light to travel from the Sun to Earth using the speed of light. They know the distance between the Earth and the Sun and divide it by the speed of light to calculate the time it takes for sunlight to reach us. The speed of light is approximately 186,282 miles per second (299,792 kilometers per second).
Why is the light unable to reach the screen?
Explain why the light is unable to reach the screen
Can the laser light reach the moon?
Yes , laser lights easily reach the moon. It should take about 1.3 seconds to reach it. The moon is about 239,000 miles away. Light travels at a constant 186,000 per second. So the math is easy.
Why is the distace between earth and the sun measured in light minutes and the distance between neptune and the sun measured in light hours?
Because it only takes 8 minutes for sunlight to reach Earth, but it takes 4 hours to reach Neptune.
Why is the distance from the sun and earth is measured by light minutes and the distance from the sun and Pluto is measured by light years?
There is nothing in our solar system far enough away from anything else in our solar system to be measured in light years. Light from the sun takes 340 minutes to reach Pluto, ie. 340 light minutes. Apart from the sun, the nearest star to us, Proxima Centauri, is 4.3 light years away.
Units used to measure the distance to stars in terms of whether their starlight takes minutes or years to reach earth?
The distance to stars is typically measured in light-years, which is the distance light travels in one year. Light-years are used because the distances to stars are vast and measuring in kilometers or miles would be impractical. For closer stars, distances can sometimes be measured in parsecs, which is another unit of distance based on trigonometric parallax.
If something is 243 light years away how long would it take to get there?
Since the distance is measured in light years, it would take 243 years for light to travel that distance. However, with our current technology, spacecraft would take significantly longer than that to reach a destination 243 light years away.
How long does it take starlight to reach us?
The distance of Altair is listed as 16.8 light-years.That's something like 1.1 million times the distance from the earth to the sun !
How many meters per second would it take stars light to reach earth?
Light travels at about 300,000 metres per second. The time taken for that light to reach us would depend on the stars distance.
How long will it take for light to reach us from a galaxy 8 million light years away?
8 million years. A light-year is the distance light travels in a year.
How long does light from the sun take to reach mercury?
Mercury's average distance from the sun is 36 million miles (58 million km).The time for light to cover that distance is about 193 seconds.
How long would take light to travel from earth to mars at a distance of 56 million km?
At a distance of 56 million kilometers, light requires 3.1 minutes to reach Mars from Earth.
What is The distance and travel time between Newcastle and sunshine?
Light takes about 8 minutes to reach earth
What colors of light reach the trees from the Sun?
Trees receive red, green, and blue light from the Sun, which are the primary colors needed for photosynthesis. These colors are absorbed by the chlorophyll in the leaves, helping the trees convert light energy into chemical energy.
What stars are closest to us?
The closest star is the Sun. The distance is a little over 8 light-minutes. That is, it takes light from the Sun that long to reach us.The next-closest star is Proxima Centauri. The distance is about 4.2 light-years.
