What happens to an incident ray that passes through the focal point of a concave mirror?

An incident ray passing through the focal point is reflected so that it is parallel to the axis.

An incident ray that can be extended to pass through the focal point of a convex mirror will be reflected parallel to the axis.

5 May 2023

Using lensesL.O

Design a camera. Predict at what distance a convex lens can

act as a magnifying glass.

5 May 2023

Homework: workbook pages 113-115

Revision session today in KC3.

5 May 2023constructing ray diagrams

5 May 2023formation of a real image by a convex lens

5 May 2023linear magnification

5 May 2023linear magnification

5 May 2023focussing a camera

5 May 2023camera aperture

5 May 2023Changing the aperture

5 May 2023

A camera contains a converging lens that is used to form a real image of an object.

F F 2F2F

5. OBJECT INSIDE F

IMAGE: VIRTUAL*, UPRIGHT, MAGNIFIED

IMAGE POSITION: inside 2F & SAME SIDE AS OBJECT

uses

end show*VIRTUAL Image: Light does NOT actually pass through it – cannot be projected onto a screen

Arrow key to animate slide

5. OBJECT INSIDE FIMAGE: VIRTUAL, UPRIGHT, MAGNIFIED

IMAGE POSITION: inside 2F & SAME SIDE AS OBJECT

Back to diagram

Magnifying glass

5 May 2023

Task:

Workbook page 116-117

Using lenses

L.O.:What type of lens is used in a camera and

magnifying glass.What type of image is formed in a camera

and magnifying glass?

5 May 2023