1.

a 50 cm height of tall object is at a very large distance from a diverging lens virtual errect and dimnished image of the object is form at distance 20 cm in front of the lens find focal length of the lens​

Answer»

When an object is PLACED at a very large DISTANCE from a DIVERGING lens, then image is formed at the focus of the lens. Therefore, the FOCAL length of the lens is 20 cm.Explanation:



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