a mirror forms an image of magnification 1/3 . if the object is placed at a distance of 10 cm from the mirror then calculate the position of the image and focal length of the mirror.
Answers
Answered by
1
Answer:
Magnification is 3 it may be +3 or -3
then v=−3u or v=+3u
If v=−3u
From mirror formula,
v
1
+
u
1
=
f
1
3u
−1
+
u
−1
=
f
−1
u=
3
4f
=
3
4×24
=32cm
If v=+3u
From mirror formula,
v
1
+
u
1
=
f
1
3u
1
+
u
−1
=
f
−1
u=
3
2f
=
3
2×24
=16cm
So u=32 cm or 16 cm
option B is correct
Explanation:
Similar questions