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Complete the following sentences:(a) An object is placed at a distance of more than 40 cm from a convex lens of focal length 20 cm. The image formed is real, inverted and ……….(b) an object is placed at a distance 2f from a convex lens of focal length f. The size of image formed is ………….. that of the object.(c) an object is placed at a distance 5 cm from a convex lens of focal length 10 cm. The image formed is virtual, upright and ……………. |
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Answer» (a) An object is placed at a distance of more than 40 cm from a convex lens of focal length 20 cm. The image formed is real, inverted and diminished. (b) An object is placed at a distance 2f from a convex lens of focal length f. The image formed is equal to that of the object. (c) An object is placed at a distance 5 cm from a convex lens of focal length 10 cm. The image formed is virtual, upright and magnified. |
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