Question

30 points question.......please answer....please​

Answer 1

Since the magnification of the image is -1 , therefore it is placed at C.
So
u=v
= -30cm

Now when the object is moved 20 cm towards the mirror, u= -10cm
So the object is placed between P and F .
So the image will be formed behind the mirror.

And the characteristics of the image formed are:-
1. It is virtual and erect.
2. It is magnified.

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Answer 2

here is the answer see the (attachment)