A laser pointer used in a lecture hall emits light at 650 nm what is the frequency
1 answer:
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Hello there!
The correct answer is 7.24
See picture below for the steps!
As always, I am here to help!
The correct answer is 7.24
See picture below for the steps!
As always, I am here to help!
Answer:
a. normal
Explanation:
In the field of physics the normal is a line drawn at a right angle to a barrier. In other words the normal line is the line that is drawn perpendicular (right angle, 90 degrees) to the reflective surface of a mirror, or the particular boundary in which refraction occurs at the point of incidence of a light ray. This can be seen in the picture attached below.
