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what is the position of a real object when a magnified fortune image is produced by a convex lens of focal length 30 cm |
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Answer» Answer: Let the object distance be X, i.e u=−x Magnification, m= u −v
⇒ 5= −x −v
⇒v=5x Using lens FORMULA: ⇒ v 1
− u 1
= f 1
⇒ 5x 1
− −x 1
= 30 1
⇒ 5x 6
= 30 1
⇒x=36 cm Thus the object distance is 36 cm. |
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