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Determine the focal length of a concave mirror by two pins method
उत्तल लेस की सहायता से एक उत्तल दर्पण की फोकस दूरी ज्ञात करें।
Find the focal lengh of a convex mirror using a convex lens
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Fix the given concave mirror on the stand and place it on a table, facing towards a distant object. Arrange the screen on the table so that the image of the distant object is obtained on it. Measure the distance between mirror and screen using a metre scale. It can be taken as the focal length (f) of the mirror.
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