Practice TestTake a test on your terms and definitions
Spaced RepetitionScientifically backed study method
Matching GameHow quick can you match all your cards?
FlashcardsStudy terms and definitions
1 / 18
There's no tags or description
Looks like no one added any tags here yet for you.
19 Terms
1
Law of Reflection
The angle of incidence is equal to the angle of reflection; it holds true for all surfaces.
New cards
2
Normal Line
A line perpendicular to the surface at the point of incidence.
New cards
3
Centre of Curvature (C)
The center of the sphere from which the mirror is a part; all normals converge toward this point in a concave mirror.
New cards
4
Pole (P) of the mirror
The midpoint of the mirror where the principal axis intersects the mirror surface.
New cards
5
Principal Axis
A horizontal line that passes through the centre of curvature and the pole of the mirror.
New cards
6
Radius of Curvature (R)
The distance from the pole of the mirror to the centre of curvature, given as R = 2f, where f is the focal length.
New cards
7
Focus (F) of a concave mirror
The point where parallel rays of light converge after reflecting off the concave mirror.
New cards
8
Focal Length (f)
The distance from the pole to the focal point; for a concave mirror, it is considered negative in sign convention.
New cards
9
Virtual Image
An image that cannot be projected on a screen, appears erect and can be seen when looking into the mirror.
New cards
10
Real Image
An image that can be projected on a screen, appears inverted and is formed when light rays actually converge.
New cards
11
Magnification
The ratio of the height of the image to the height of the object, also defined as m = -v/u.
New cards
12
Convex Mirror
A mirror that bulges outward, causing parallel rays to diverge and appear to come from a virtual focus behind the mirror.
New cards
13
Concave Mirror
A mirror that curves inward, where parallel rays converge at a focal point in front of the mirror.
New cards
14
Mirror Formula
The relationship between object distance (u), image distance (v), and focal length (f) given as 1/f = 1/v + 1/u.
New cards
15
Sign Convention
A set of rules for measuring distances in optics: distances measured in the direction of incident light are positive, and those in the opposite direction are negative.
New cards
16
Ray Diagrams
Diagrams used to trace the path of light rays as they interact with a mirror to determine the nature and position of images.
New cards
17
Activity: Finding the normal to a curved surface
A practical activity using foam or rubber to demonstrate finding normals and understanding angles of incidence and reflection.
New cards
18
Experiment with Sun Rays
An experiment to find the focal point of a concave mirror using sunlight to measure the focal length.
New cards
19
Image Formation in Convex Mirrors
In a convex mirror, rays parallel to the principal axis appear to diverge from the focal point, producing a virtual, erect image.
Studied by 0 people
