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The density of Al metal is 2.7 gcm-3. An irregularly shaped piece of aluminium weighing 40.0 g  is added to a 100 mL graduated cylinder containing 50.0 mL of water. upto what height the water level will rise in the cylinder ?

(a)  14.8 mL

(b)  79.6 mL

(c)  64.8 mL

(d)  50 mL

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Correct option (c) 64.8 mL

→ d = m/v

→ :. V = m/d = 40/2.7 = 14.8 Cm3

→ Water level in cylinder = 50+ 14.8 = 64.8 mL

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