An object of height 2cm is placed at a distance 20cm in front of a concave mirror of focal length 12cm. Find the position,size and nature of the image.
Answers
Answered by
6
Hight of objects(ho)=2cm
focal length=12cm
object distance=20cm
image distance= ?
we find the image distance as following..…
By mirror formulla....
1/v+1/u=1/f
>=1/v=1/f-1u
=1/v=1/12-1/20
=1/v=5-3/60{because L.C.M of 12and 20 is =60}
=1/v=2/60
=v=30cm..
..
And hence image is virtual erect ....
that solve
focal length=12cm
object distance=20cm
image distance= ?
we find the image distance as following..…
By mirror formulla....
1/v+1/u=1/f
>=1/v=1/f-1u
=1/v=1/12-1/20
=1/v=5-3/60{because L.C.M of 12and 20 is =60}
=1/v=2/60
=v=30cm..
..
And hence image is virtual erect ....
that solve
Similar questions