Chapter 9

NCERT
Class 10
Science
Solutions
7. Using a concave mirror of focal length 15 cm, we want to form an erect image of an object. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image bigger or smaller than the object?

Question:

Using a concave mirror of focal length 15 cm, we want to form an erect image of an object. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image bigger or smaller than the object? Draw a ray diagram of the image formation for this case.

Answer:

Place the object 15 cm away from the mirror.

Nature of image is virtual and erect. Size of image is larger than the object.

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