Question

Magnification of an image formed due to a convex lens is -1.5. Guess and write the position of object and image.
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Answer 1

Answer:

Explanation:

The image is real and inverted. The object is between C and F and the image is beyond C

Answer 2

Answer:

The position of the given object is between $2f_{1}$ and $f_{1}$, and the image is formed beyond $2f_{2}$.

Explanation:

The magnification of a given image formed due to a convex lens is given to be -1.5

We know that the magnification by the convex lens is generally designated as the ratio of the height of the image and the given height of the object as below:

m = $\frac{h^{'} }{h}$

where we have $h^{'}$ to be the height of the image that is formed and h is the height of the object taken.

We know that negative magnification in the convex lens denotes that the image formed is real and the image is 1.5 times that of the object.

Therefore the position of the object is between $2f_{1}$ and $f_{1}$, and the image is formed beyond $2f_{2}$.

It is only in this case that the image formed is magnified, real, and also inverted.