A convex lers forms the image of an object placed at a distance of 10 cm from lens on the same side and it is two times larger than object. If the same object is placed at a distance of 20 cm from the lens then , find the position and magnification of image. Ans: V = 00 ,m= 0)
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Answer:
magnification = uv=2
Hence image formed is virtual, erect and magnified two times.
Step-by-step explanation:
Given:u=−10cm f=20cm (convex lens)
To find: v and image's nature.
From lens formula
⇒ v1−u1=f1
⇒ v1+101=201
⇒ v1=20−1
⇒ v=−20cm
And magnification = uv=2
Hence image formed is virtual, erect and magnified two times.
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