Optics: The Laws of Reflection Flashcards
Bouncing back of light in the original medium where it has been traveling.
Reflection
Image formed by mirror may be?
real or virtual
Increases virtual image if it is located behind the mirror.
plane mirror
Rough surface. Will be scattered in different reaction.
Diffuse Reflection
- formed
- behind the mirror
- no actual intersection
virtual image
What are the spherical mirrors?
Concave Mirrors and Convex Mirrors
real images
Concave Mirrors
virtual images
Convex Mirrors
source
point of contact
Mirrors cut out from spherical.
Spherical mirrors
Center of sphere from where mirror was taken.
center of curvature (C)
Center of mirror. Sometimes called “hole of the mirror”. Line that connects distance.
vertex (V)
Reflection from a mirror. Flat.
Regular Reflection
Distance between C (center of curvature) and V (vertex).
Radius of curvature (R)
Straight line joining C (center of curvature).
Principal Axis or Optical Axis
Thickness of mirror.
Aperture
Point where reflected rays meet. Sum to come where diverging mirror.
Principal focus (F)
Distance from vertex to principal focus. 1/2 of radius of curvature.
Focal length (f)
The 1st Law of Reflection.
The incident ray, the reflected ray, and the normal to the surface of the mirror, all lie in the same plane.
The 2nd Law of Reflection.
The angle of incidence is equal to the angle of reflection.
This defines that upon reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray, with respect to the normal to the surface that is to a line perpendicular to the surface at the point of contact.
law of reflection
Always in the plane defined by the incident ray and the normal to the surface at the point of contact of the incident ray.
reflected ray
The process through which light rays fall on the surface and get bounced back.
reflection of light
Types of Reflection.
Regular Reflection and Irregular Reflection