Q: In geometry is laser beam a line or a ray?

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It is the same. The only difference is that between a ray and a line. A ray starts at one point and goes in ONE direction forever. Imagine if you had a laser gun that would cut through anything. The point where a ray starts is just like the body of the laser gun-- it is where the laser beam starts and the laser only goes away from it in one direction, while the ray itself is like the laser beam--it starts at the gun and will cut through anything in its path. A line does not start or stop at any specific point and goes on in both directions forever. Alternatively, you could think of it as being a laser gun that has some sort of problem where it fires the laser out of the front and the back at the same time.

Ray Endpoint Shape Forever Going

A ray.

No. A ray is infinite on one side and ends at a point at the other. A line segment ends in two points. A ray can contain a line segment, as the distance between any two given points on the ray is a line segment.

Yes, because a ray is a line with an end point. It goes on forever in one direction.

Related questions

Each one is called ray and group of them is called beam.

Ray

It is a ray [of coherent light], a physical term.

It is the same. The only difference is that between a ray and a line. A ray starts at one point and goes in ONE direction forever. Imagine if you had a laser gun that would cut through anything. The point where a ray starts is just like the body of the laser gun-- it is where the laser beam starts and the laser only goes away from it in one direction, while the ray itself is like the laser beam--it starts at the gun and will cut through anything in its path. A line does not start or stop at any specific point and goes on in both directions forever. Alternatively, you could think of it as being a laser gun that has some sort of problem where it fires the laser out of the front and the back at the same time.

I think the color of the laser is blue

what is the colour of blue ray disk

Blue

*BLU* ray the answer just in case you missed it is blue

Not in plane Euclidean geometry.

A laser, light from a flashlight, and radio waves are all rays

Blue thus the name.

ray or laser