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🔬 Science - Class 8
Unit 7 · Energy in Daily Life

Ray diagram for concave and convex mirror Presentation

ScienceSubject
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Slide 1 of 4
Science and Technology, Class 8

Ray diagrams for concave and convex mirrors

Six positions · Two rays · One table

How a diagram is drawn
The three rays that find an image
PARALLEL
A ray arriving parallel to the principal axis reflects through F.
THROUGH C
A ray aimed at C hits the surface squarely and returns along the same line.
THROUGH F
A ray passing through F comes away parallel to the axis.
MEET
Where the two reflected rays meet is the top of the image.

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Presenter notes: Today we look at how one concave mirror gives quite different images as the object is moved, and why a convex mirror's image is always the same kind.