A 10 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 30 cm. If the distance of the object from the lens is 20 cm then the image distance and size of the image respectively are *
1 point
(a) -60cm, + 30cm
(b) + 60cm, - 30cm
(c) -30cm, +60cm
(d) +30cm, - 60cm
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A 10 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 30 cm. If the distance of the object from the lens is 20 cm then the image distance and size of the image respectively are *
(a) -60cm, + 30cm
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