A convex lens makes a real image of 4 cm long (height) on a screen. When the lens is shifted to a new position without disturbing the object or the screen, we get a real image on the screen, which is 16 cm long. The length (height) of the object is :
Text Solution
Verified by ExpertsThe correct answer is:
B
From displacement method, the length of object is given by
O = 
= 
= 
= 8 cm
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