when an object is placed at a distance of 50 cm from a concave spherical mirror the magnification produced is -1 by 2 where should the object be placed to get a magnification of minus 1 by 5
Anonymous:
is it - 5 cm
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Answered by
79
Magnification=-v/u
-1/2=-v/-50
v=-25cm
By using mirror formula we can calculate focal length
f=-50/3cm
Magnification=-v/u
-1/5=-v/u
u=5v
1/f=1/v+1/u
-3/50=1/5v+1/v
v=-20cm
u=5v
=5×(-20)
=-100cm
Please mark it brainliest
Is v - 10 or - 20
-10
Did u take lcm
Yes
I m getting - 20
U r right
Now it is correct
Yuppp
Please check the upper answer
Actually i r right I think because the focal length is same for all cases but the image distance varies depending on the object distance
Answered by
5
Answer: Object should be placed at 100 cm
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