What is the distance between the object and it's virtual image when object is placed 20cm in front of plane mirror
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The plane mirror being moved 2cm nearer the object predicts the image to move 2×2=4cm ahead of the original image. Other wise the initial position of image was at 2×20cm from the object. As the mirror moved 2cm towards the object its new distance from mirror becomes 18cm.Then, the new distance of image from object becomes 2×18=36cm.Hence the distance betwen the two images=(40–36)cm=4cm.Ans..
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MARK AS BRAINLIEST
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10 cm
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The distance between an object and an plane mirror is equal to the distance in the mirror so,
20/2=10(ans)
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