7 We wish to obtain an erect image of an
object, using a concave mirror of focal length
15 cm. What should be the range of distance
of the object from the mirror? What is the
nature of image? Is the image larger or
smaller than the object? Draw a ray diagram
to show the image formation in this case.
Answers
Object distance should be less than the focal length for the formation of an erect image. Hence, the range of distance of object from the mirror should be less than 15 cm i.e. from 0 to 15 cm in the front of mirror from the pole. The nature of image so formed will be virtual and erect. The size of the image will be larger than object. Ray diagram is attached as image to the question.
Object distance should be less than the focal length for the formation of an erect image. Hence, the range of distance of object from the mirror should be less than 15 cm i.e. from 0 to 15 cm in the front of mirror from the pole. The nature of image so formed will be virtual and erect. The size of the image will be larger than object. Ray diagram is attached as image to the question.