Download presentation

Published byMadeline McDonough Modified over 8 years ago

1
Learning Outcome Draw a ray diagram to find the position, nature and size of the image produced by a concave and convex mirrors

2
**Plane Mirrors Eye sees image back here**

Image is virtual and laterally inverted Light from object reflects into eye

3
**Curved (Concave) Mirrors**

F P c pa f P = pole , pa = principal axis C = centre of curvature, c = radius of curvature F = Focal point or focus, f = focal length f = c / 2

4
Ray Diagrams Rule 1: An incident ray parallel to the pa is reflected back through the focal point. F

5
Ray Diagrams Rule 2: An incident ray that passes through the focal point on the way to the mirror is reflected back parallel to the pa. F

6
Ray Diagrams Rule 3: An incident ray headed towards the pole reflects back at an equal angle P F

7
**All three combined allow you to find the image **

In this example the image is inverted, diminished and real object F P image

8
Concave Mirrors Concave (or converging) mirrors focus light at the focal point. F

9
**Convex Mirrors Convex mirrors have a focal point behind the mirror.**

Convex (or diverging) mirrors spread the light rays apart so that they appear to have come from the focal point F

10
**Ray Diagrams The same rules can be applied to convex mirrors…**

All convex mirror images are virtual. object F image

Similar presentations

© 2021 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google