anybody having the pdf of mbd super refresher history class 12 can send me and I will give them 200 thanks and 50 points
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You just search in google you have so many pdf in it
pls mark brainlist answer.
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Explanation:
Four identical sized rods of different materials are sealed at the bottom of a vessel as shown in the figure. The same amount of wax is placed at the end of each of the rods. When the vessel is filled with boiling water, wax from which rod will melt the fastest
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