Question

From the magnification of the image which peculiarities of the image can be under stand?

Answer 1

Explanation:

It's real inverted and same size as the object.

Magnification is -v/u so since magnification in question is -1 so both v and u are negative so image is on same side as object so it's real image. -sign in magnification shows inverted image and magnitude is 1 so it's same size as object.

Answer 2

From the magnification of image, we can understand whether the image is real or virtual.

What is magnification?

• Magnification can be defined as ratio of height or size of image to the ratio of height or size of object.
• It gives a relative measure of how big or small the image is formed.
• The height of the image and the object is written considering the signs of the measurement.

Magnification of real image?

• A real image is inverted in nature.
• So, if the height of object is taken positive, then the height of image will be in negative direction. And therefore, the magnification becomes negative.

Magnification of virtual image?

• A virtual image is erect in nature.
• So, if the height of object is taken positive, then the height of image will also be in positive direction. And therefore, the magnification becomes positive.

If magnification is positive, the image is virtual and erect and if the magnification is negative, image is real and inverted.