Question

Draw the ray diagram to represent the image formation in
concave lens of focal length 15 cm when the object is placed at
20cm from the optic centre
Draw the ray diagram to represent image formation in convex
mirror when the object is placed in front of it​

Answer 1

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Answer 2

Given :

f=15cm

object distance= u= 20cm

Concave lens :

When object is placed in between F and C , we get image on the same side as object.

Nature Of Image :

• Virtual
• Erect
• and diminished Image formed

Convex mirror :

When object is placed infront of mirror , we get image behind mirror

Nature of Image :

• Virtual
• erect
• Diminished