Question

State the rules for obtaining images formed by a convex mirror and draw the diagram for same.​

Answer 1

Answer:

Rule1. If the incident ray parallel to principal axis, then the refracted ray passes through focus (F).  

Rule2. If the incident ray passes through the focus, the refracted ray becomes parallel to principal axis.

Rule3. A ray of light passing through the optical center of lens passes through the lens undeviating.

Explanation:

Pos. of Obj   Pos. of Image  Rel. size of Image  Nature of Image

At infinity         At F       Highly diminished             Real & inverted

Beyond 2F       Between F & 2F      Diminished     Real & inverted

At 2F1                At 2f            Same size                  Real & inverted

Between 2F & F       Beyond 2F         Enlarged     Real & inverted

At F          At infinity        Highly enlarged              Real & inverted

 B/w infinity & c    B/w infinity & c    Enlarged        Virtual & erect

Answer 2

there are three rules for obtaining images formed by convex lens are as follows:-

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