Question

OBSERVATIONS
Rough focal length of the given convex lens =
Least count of the given metre scale =
cm
cm
At the position of no parallax u
S. No. Position of object Position of lens Position of the image
pin P, (a)
(b)
locating pin P, (c)
(in cm)
(in cm)
(in cm)
u
Focal length of
the lens
uy
V
(a - b) cm (b-c) cm
W+V
(in cm)
1
f
cm
cm
3.
--- cm
22​

Answer 1

Answer:

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