IIT JEE 2007 Practice : PHYSICS - Multiple Choice

Each question below has only one correct answer.
In the IIT-JEE, you will be awarded 3 marks for each correct answer and −1 for each incorrect answer.
You will be awarded 0 marks for not attempting a question.

Quiz

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Multiple choice

Your Performance  

A point object is placed on the principal axis of a thin plano-convex lens of focal length 20 cm at a distance u of 15 cm as shown in the figure. If the plane surface AB of the lens is silvered, the image will form at   30 cm left of the plane AB   60 cm right of the plane AB   60 cm left of the plane AB   30 cm right of the plane AB   Hint Half-n-half Clue

 

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