A convex mirror has its radius of curvature 20 cm. Find the position of the image of a object placed at a distance of 12 cm from the mirror.
Answers
Answered by
0
From mirror formula,
u
1
+
v
1
=
f
1
;u is −ve (∵f=
2
R
=
2
20
=10cm)
v
1
=
f
1
−
u
1
=
10
−1
+
12
−1
=−(
60
5+6
)=
60
−11
(∵f is −ve for a concave mirror)
∴v=
11
60
cm
So the distance of the image is
6/11 and it is virtual ( -ve)
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Answered by
41
- A convex mirror
- The radius of curvature is 20cm.
- The object placed at a distance of 1e cm from the mirror.
- The position of image
Formula :-
Where,
- u is the object distance
- v is the image distance
- f is the focal length given by
- R is the radius of curvature of the convex mirror.
At first, Let's find the focal length
So, To find image distance the formula will be
Now , put the given values in formula
Therefore,
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