It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm. |
(i) What should be the range of distance of an object placed in front of the mirror? |
(ii) Will the image be smaller or larger than the object. Draw ray diagram to show the formation of image in this case. |
(iii) Where will the image of this object be, if it is placed 24 cm in front of the mirror? Draw ray diagram for this situation also to justify your answer. |
Show the positions of pole, principal focus and the centre of curvature in the above ray diagrams. |
Answer:
(i) The range of distance should be 0 cm to less than 12 cm from the mirror. (ii) The image will be larger than the object. (iii) Image will be formed at a distance of 24 cm in front of the mirror.
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