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Q: Why does light only go in a straight line?
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How can light go through straight tubes but not bent tubes?

because bent tube does not reflect light back .moreover light travels in a straight line


Why is it hard for headlight beams to penetrate a thick fog?

Fog is in essence tiny water particles. The light goes into a straight line as long as there are no objects colliding with it. However, water not only stops the light particles, it refracts them, causing the light to go in every direction except straight ahead.


How many times does light go around the world in a day?

Light does not go around the world. It travels in a straight line. For light to go around the world, it would have to periodically redirected using mirrors.


If the screen go's black but has a straight line of light going across screen middle of screen is this the picture tube that is bad?

Yes, it is.


How does a solar eclipse show that light travels in straight?

If light did not travel in a straight line then the light would just bend around the body that is suppose to be making a shadow and no shadow would be observed. as there is a shadow cast by that body this proves that light does not bend and in fact travels in a straight line.


What is slant line?

a slanting line is a line that dident go straight


Are you shopping ourselves straight to the unemployent line?

I do see why or how my shopping should have any significant effect on whether or not you go straight to the unemployment line or not. I do see why or how my shopping should have any significant effect on whether or not you go straight to the unemployment line or not. I do see why or how my shopping should have any significant effect on whether or not you go straight to the unemployment line or not. I do see why or how my shopping should have any significant effect on whether or not you go straight to the unemployment line or not.


How fast can light travel around the world?

Light travels at 300,000 km/sec. (in a vacuum). That is enough to go 7 1/2 times around the Earth in a second (but note that light has a natural tendency to go in a straight line).


3 rows of 3 dots go through each dot with a straight line without lifting your pencil with only 3 lines?

straight line to each dot go to the three go down and do those tree aTA DA you got your answer hope this was helpful


How far can a straight line go?

Forever.


What is vertical line go?

straight up


How do you explain that light travels in straight line?

It doesn't always go straight!It doesn't always travel in straight line! Light can be bent by objects of very large mass (for instance, when it passes by a star) by gravity. It is also bent when the medium it is passing through changes index of refraction.Otherwise, it does travel in a straight line. Although to be honest, I'm not entirely sure "how" we know that! Good question! Anybody?But you do know if the thing seen is really in the position that it appears to be.How do know that it travels in a straight line?Because people cant see around bends and you need light to see so light cannot bend