Question

an object 2 cm in size is placed 30 cm in front of a concave mirror of focal length 15 cm .at what distance from the mirror should a screen he placed in order to obtain a sharp image ?what will be the nature and the size of the image formed?draw a ray diagram to show the formation of the image in this case?


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Answer 1

Answer:

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Answer 2

Answer:

It will be found to be equal to 6 cm. Thus, object is placed at a distance of 6 cm × 5 = 30 cm from the lens.