a tangent
"Perpendicular" means at an angle of 90° to a given line, plane, or surface.
0 degrees
A horizontal line is a line perpendicular to the vertical.
No clue! look in ur txtbook?
The line perpendicular to a surface at a point is called the normal
A normal line is the name of the line drawn perpendicular to the surface where a light ray strikes.
The line perpendicular to a surface at the point of incidence is known as the normal line. It represents the direction that is perpendicular to the surface at that specific point. This normal line is used in optics to determine the angle of incidence and reflection for light rays interacting with the surface.
A normal line is the name of the line drawn perpendicular to the surface where a light ray strikes.
A normal line is the name of the line drawn perpendicular to the surface where a light ray strikes.
The normal (ray).
Line perpendicular to the surface.
a tangent
If the field lines were not perpendicular to the surface, then they could be decomposed into components perpendicular and parallel to the surface. But if there is an E-field along the surface, the surface is no longer an equipotential.
The line perpendicular to a reflecting surface where the incident ray ends and the reflected ray begins is called the normal line.
The normal to a surface is an imaginary line that is perpendicular to the surface at a specific point. It indicates the direction that is perpendicular to the surface and is used in geometry and physics to determine angles of incidence and reflection.
The perpendicular to a plane mirror is a line that is at a 90-degree angle to the mirror's surface. It is important for understanding the reflection of light rays off the mirror's surface, as the angle of incidence is equal to the angle of reflection with respect to this perpendicular line.