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Activity 9.3 — Image Formation by Convex Mirror
NCERT Activity 9.3: Explore how a convex mirror always forms a virtual, erect, and diminished image — and why it's used as a rear-view mirror.
How To Perform
1
Set Up the Mirror
Identify the Pole (P), virtual Focus (F), and Center of Curvature (C) of a convex mirror.
2
Object Close
Place the object close and observe the virtual, erect, diminished image behind the mirror.
3
Object Far
Move the object far away — image becomes even smaller but stays virtual and erect.
4
Diverging Rays
Understand why reflected rays always diverge and the image is always virtual.
5
Classify
Why is a convex mirror preferred as a rear-view mirror?