Question

L. Following figure illustrates the my diagram for the formation of image by a ancave mirror. The position of the object is beyond the centre of curvature of the concave mirror. On the basis of given diagram answer any four questions from Q10 Q.5. M B 1. If the focal length of the concave mimar is 10 cm, the image formed will be at a distance (A) Between 10em and 15cm (B) Between 10cm and 20cm (C) Bevond 20em (D) A 20 cm​

Answer 1

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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.

Answer 2

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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.