Question

An object is placed at a distance of 10cm from a convex lens of focal length 12cm.Find the position and nature of the image​

Answer 1

Answer: The image is formed at 60 cm from the lens and on the same side of the lens with respect to the object. It is virtual, erect and magnified.

Explain: begin mathsize 12px style Using space the space Lens space formula comma space we space get

1 over straight f equals 1 over straight v minus 1 over straight u

therefore 1 over straight v equals 1 over straight f plus 1 over straight u

rightwards arrow 1 over straight v equals 1 over 12 plus fraction numerator 1 over denominator negative 10 end fraction

therefore 1 over straight v equals negative 1 over 60

therefore space straight v equals negative space 60 space cm

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