no
cuz it does
yes
Isaac Newton proposed that light consisted of particles that travel in straight lines through space.
the travel in straight lines because of the atomsphe
Earthquake P-waves don't travel in straight lines, they travel in like a circle after the earthquake has struck. These P-waves arrive first during an earthquake.
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The phenomenon where light waves travel in straight lines is called rectilinear propagation. This means that light travels in a straight path unless it encounters a medium that causes it to change direction.
Light rays travel in straight lines due to the principle of the shortest path, known as Fermat's principle. Light travels along the path that minimizes the time it takes to travel from one point to another. This results in light rays following straight lines in a uniform medium.
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The magnetic lines are always circular & emerging from north & entering in the south pole of magnet outside it. they are never straight.
Electromagnetic radiation travels in straight lines.
To remember this think of you are looking directly at a building a car crash happens behind this building. You know this from the sound produced that can travel in all directions past the building. You cannot see it because as light dose not bend under normal circumstances and will only travel in straight lines. Even if reflected using a combination of mirrors it still travels in straight lines.