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A 4 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20 cm.
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Nov 13, 2023
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Kabita
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A 4 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 15 cm. Find the nature, position and the size of the image formed.
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Nov 13, 2023
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Haren
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Given, u = - 15 cm, f = 20 cm, v=?
Using lens formula, 1/v- 1/u= 1/f
1/v = - 1/60
V = -60 cm
m = hi/ho= v/u
hi = 16 cm
Image formed is virtual, erect and magnified.
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