A convex lens is arranged parallel to a plane mirror. A pin is adjusted so that its reflected image coincides with itself. State the observations with the ray diagram.
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Answer:
as the distance between object and plane mirror is 30cm i.e, distance between plane mirror and convex mirror is 20cm so the image distance
for convex mirror is 10cm
for convex mirror , u=−50 ; v=+10
let f be focal length
v1+u1=f1
101−501=f1
f=450
radius=f×2
radius=25cm , hence option A is correct
Explanation:
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