the focal length of concave mirror is 20cm. detrmine where an object must be placed to form an Image magnified two times ehen the image is real
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The object is placed between 40 and 20 cm because a concave mirror provide a two time magnifide image when it is placed between focus and center of curvature. So it is placed at 30 cm.
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Answer:hey here is your answer...........
when a body covers equal distances in equal interval of time then it is said uniform motion
when a body cover unequal distances in equal interval of time then it is said to be non uniform motion.
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