Question

An object 4.0 cm in size is placed at 25.0 cm in front of concave mirror of focal length 15.0 cm. At what distance from the mirror should a screen be placed in order to obtain a sharp image? Find the nature and size of the image

1)v=-37.5 cm, Image is inverted and enlarge

2)v=37.5 cm, Image is erect and diminished

3)v=-12.5 cm, Image is inverted and enlarge

4)v=12.5 cm, Image is erect and diminished

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Answer 1

Answer:

Therefore, the screen must be placed in front of the mirror at a distance of 37.5 cm. Negative sign indicates that the image is below the principal axis. Therefore, the size of the image is 6 cm.

Answer 2

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