The following figure shows a beam of light converging at point 
. When a concave lens of focal length 
is introduced in the path of the beam at a place shown by dotted line such that 
becomes the axis of the lens, the beam converges at a distance 
from the lens. The value of 
will be equal to
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
: Here 
can be considered as the object distance since the real image formed at 
will act
as an object to the lens.
?
From lens formula.
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