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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A point object has velocity v = 2 cm/s when it is placed at a distance of 30 cm from a lens moving with a speed v lens = 2 cm/s towards left. If the focal length of the lens is

A point object has velocity v = 2 cm/s when it is placed at a distance of 30 cm from a lens moving with a speed v lens = 2 cm/s towards left. If the focal length of the lens is

A point object has velocity v- = 2 cm/s when it is placed at a distance of 30 cm from a lens moving with a speed v lens = 2 cm/s towards left. If the focal length of the lens is