Want this question answered?
a normal is the middle line from where angle of incidence and angle of reflection are same
Reflection is the return of sound waves from surfaces on which they are incident.
reflected impedence is a tool to analyse resonant coupling..
Normal to the surface is a vector which is perpendicular to that surface
The answer is that one mirror inside the periscope is meant to reflect the light onto the other mirror so that it goes back into your eyes. It was popularly used in World War I to see over the trenches without being a heavy target to artillery. It is also still used in submarines to see above water level whilst staying submerged.For a diagram that will (should) help, copy and paste the link below:http://www.madsci.org/posts/archives/2000-05/959444445.Eg.1.jpg
The line perpendicular to the reflecting surface at the point of incidence.
a normal is the middle line from where angle of incidence and angle of reflection are same
context-free-diagramis a diagram that represents the actors outside a system that could interact with that system.
The angle of incidence and reflection are reference to of a line normal or perpendicular to a surface. The incidence angle is the incoming ray angle relative to the normal line and the reflection is the outgoing angle relative to the normal line. Both angles are in the plane containing the normal line and the incidence ray.
Reflection is the return of sound waves from surfaces on which they are incident.
A mirror reflects light. "Reflection" also means thinking about something. Thus if you were thinking about how you face looked in the mirror this morning you would be having a reflection on reflection.
reflected impedence is a tool to analyse resonant coupling..
what is the meant by total internal reflection
Check spelling and ask again-do you need reflection or refraction
With specular reflection (how a mirror reflects) the light is reflected from the mirror surface in a specific way.Light from a single incoming direction is reflected into a single outgoing direction as described by the law of reflection.This states that the direction of incoming light (the incident ray), and the direction of outgoing light reflected (the reflected ray) make the same angle with respect to the surface normal, thus the angle of incidence equals the angle of reflection and that the incident, normal, and reflected directions are coplanar.
FBD-free body diagram
One tenth of normal.