1.

State two positions in which a concave mirror produces a magnified image of a given object. List two differences between the two images.

Answer»

Concave mirror is a mirror , which is bulged inside. It is used as shaving mirrors, and ALSO by doctors for examining  teeth.Concave mirror always produce real and inverted image , except in one case , where the image is formed virtual and erect , when the object is placed very near to the mirror(between P and F). Magnified image - Highly ENLARGED image ( size of image > size of object)(i) When the object is placed at F , the image is formed at infinity.(ii) When the object is placed between P and F ,magnified image is formed.Differences :-In the first case (i) , 1. The image is formed at infinity . 2. Size of image is highly enlarged.3.Also , the image is real and inverted.In the second case (ii) , 1. The image is formed BEHIND the mirror. 2. Size of  image is  enlarged .  3.Also, the image formed is virtual and erect. Explanation:



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