Q21. Find the interplanar spacing of
(220) plane for lead with an atomic
radius of 1.746 Å. Lead has a face
centered cubic structure. *
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A plane mirror makes an image of objects in front of the mirror; these images appear to be behind the plane in which the mirror lies. A straight line drawn from part of an object to the corresponding part of its image makes a right angle with, and is bisected by, the surface of the plane mirror.
MARK AS BRAINLIEST
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