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Explanation:
- in case of a concave mirror according to the rules of the ray diagram and the image formation and its nature
- is determined by the object distance in front of the mirror
- so so according to the rule we can say that when the object is placed between the focal length and pole that is lesser than 40cm object length we get an virtual and erect image and magnified
- as the virtual image formed is two times the size of the object implies the image distance is twice the object distance
- so object must be placed in between the focus and the pole
- hope you understand
- is it useful for you Mark me brainliest
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