If a small object of length λ is at 20cm in front of convex mirror of focal length 20cm. If the object is placed along the principal axis of mirror then length of image formed is -
Text Solution
Verified by ExpertsThe correct answer is:
C
u = –20 cm, f = +20 cm ; m = 
m = 
= 
M = –m 2 = 
= 
∴ length of image = 
(length of object) = 
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