1.

An object is placed at the following distance from a convex lens of focal length 15cm​

Answer»

tion:AnswerHere , f=15cm and 2F=30cm (i) 20CM (Because a magnified real image is formed when the object is placed between f and 2f ).(ii) 10cm ( Because a magnified virtual image is formed when the object is placed between f and the lens).(iii) 35CM (Because a diminished real image is formed when the object is placed beyond 2f).(iv) 30cm ( Because an image of same SIZE as the object is formed when the object is placed at 2f).



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