Two objects A and B when placed in turn infront of a concave mirror of focal length 7.5 cm, give image of equal size. If A is three times the size of B and is placed 30 cm from the mirror, what is the distance of B from the mirror
Text Solution
Verified by ExpertsThe correct answer is:
B
where 
and 
As 
So, 
and 
It is given that 
and 
Thus, 
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