1. CURVED MIRRORS

2. Formation
Imagine taking a piece of a ball and polishing the inside surface, this would make a _______________
C is called the __________________
__________________

3. Centre of curvature
On a curved surface, all the ____________________ will point in a different direction
Imagine the curved surface to be made up of several, small mirrors
All the normals meet at one point – this point is called the _________________________________________________________________________________________________________
Find the one with many normals meeting
See that all the rays from centre of curvature to the surface of the mirror are normal to the mirror

4. Mirror Terms
An imaginary horizontal line drawn passing through C is called the _____________________
_____________________
The point at which the principal axis cuts the centre of the mirror is called the _____________

5. Concave Mirror
A beam of light parallel to the principal axis is brought to a focus after reflection from a concave mirror.
The focal point is called the ______________________________________

6. Concave Mirror
The focal length is ________________________________________________________________________________

7. Concave Mirror

8. Convex Mirror

9. Concave Mirrors
How can we predict the nature and position of the image formed by a concave mirror?

10. Ray Tracing-Image formation
__________ are used to find the position and nature of the image formed by a mirror.

11. Ray Tracing-Image formation
A ray parallel to the principal axis will pass through the principal focus
A ray passing through the focus will travel parallel to the principal focus
A ray through C will reflect back through C

12. Image formation by Concave Mirror
Draw ??? representing the mirror.
Draw a horizontal line through the centre of the mirror representing the principal axis.
Place a dot on the horizontal line to represent F, the principal focus a distance f from mirror centre P.

13. Image formation by Concave Mirror
Place a second dot at a point on the horizontal line representing C the centre of curvature, 2f from P.
Place the object
From the head of the object draw a ray parallel to the principal axis
From the head of the object draw a ray passing through F that will travel parallel to the principal axis after reflection

14. Extend the reflected rays until they intersect
Where these rays intersect the head of the image will be formed
If a screen is placed at this point the image will form on it.
The image will be real, same size as the object, inverted and ???