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Standard X
Physics
Lens Formula and Magnification
Question

A convex lens of focal length10 cm is placed at a distance of 12 cm from a wall. How far from the lens should an object be placed so as to form its real image on the wall?
  1. 30 cm
  2. 15 cm
  3. 60 cm
  4. 120 cm

A
60 cm
B
15 cm
C
30 cm
D
120 cm
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Solution
Verified by Toppr

The correct option is D 60 cm
f=10cm,v=12cm,u=?

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