Chapter 2: Reflection Flashcards
True or false:
A perfect reflecting surface (free from irregularities causing diffuse reflection) would itself be invisible.
True!
If a plane mirror is deviated while incident light is on it. What happens to the angle of reflection?
Angle of reflection is twice that of the angle of deviation of the mirror.
The focal length of a circular mirror is equal to
Half the radius of the circular mirror
How do you calculate the distance of an image from a curved mirror when an object is placed infront of it?
1/v - 1/u = 1/f
V=image distance from principle plane
U= object distance from the principle plane
F= focal length
Define the principle axis of a mirror
An axis is any line passing through the centre of curvature and striking the mirror. That passing through the pole of the mirror is called the principal axis; any other is a subsidiary axis.
AKA x axis
Principle plane= y axis
Recall the ray diagrams and positions of a concave mirror
Recall the ray diagram for a convex mirror
High yield, image is same, regardless of position from mirror, same as a concave lens
How to you calculate the magnification of an image from a mirror
M= Image size /object size = V/U
V= Image distance mirror
U= object distance from mirror
