The magnification produced by a mirror is +1.25.What does it mean.
Answers
Answer:
It can either be a convex mirror or concave mirror. It depends upon the position of the object.
We have m =+1/3
We know that m= - v/u
u is always negative so in order to get magnification positive v must be negative.
That means the image should be virtual.
If the object is kept between pole and the focus of the mirror, then it will form a virtual image behind the mirror and v will be +. Hence, the mirror will be a concave mirror or a convex mirror.
If the object is kept beyond focus of the mirror then the image will be - ve ( concave mirror) or +ve(convex mirror). Hence, mirror will be a convex mirror.
Hope you got this. If not please ask in comment.
Answer:
If the magnification produced by a mirror is +1.25, it means the image formed by the mirror is Virtual as well as Erect and it 1.25 times bigger in size than the object.
Explanation:
- If a mirror produces a positive magnification of an image, it means that the image is formed on the other side of the mirror.
- It is not real, it is virtual. This means the image can not be obtained on a surface.
- It being Erect means it is on the same side of the principal axis as that of the object.
- The height of the image is 1.25 times greater than that of object.
This type of magnification occurs in a concave mirror when the object is placed between the focus and pole of the mirror.