A pulse of light takes 3.00 ns to travel through air from an emitter to a detector. When a piece of transparent material with a length of 35.0 cm is introduced into the light's path, the pulse takes 3.40 ns to travel that same distance. The piece of transparent material is held so that the pulse never changes direction. What is the speed of light in the transparent material? (in ns please)
1) A pulse of light takes 3.00 ns to travel through air from an emitter to a detector. When a piece of transparent material with a length of 35.0 cm is introduced into the light's path, the pulse takes 3.40 ns to travel that same distance. The piece of transparent material is held so that the pulse never changes direction. What is the speed of light in the transparent material? (in ns please)
2) A small red LED is placed on the principal axis 6.00 cm from a concave mirror that has a radius of curvature of 14.0 cm. The LED can be considered to be a point source. Find the image distance for the image of the LED that is created by the mirror. (in cm please. Image attached below)
I appreciate the help. I've attempeted the first question multiple times and always end up with the wrong answer so I don't know what equation to use.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
