A metal piece weight 44.5 g in air, 39.5g in water and 40.3 g in an oil. find the R.D. of the metal and the oil.
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Answer:
Wa = weight of iron piece in air
Ww = weight of iron piece in water
normally relative density is calculated wrt water.
relative density of iron piece = Wa / (Wa - Ww)
= weight in air / Loss of weight in water
= 44.5 / (44.5 - 39.5) = 8.9
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if weight in oil is also known then you could calculate relative density of oil also.
relative density of oil = (Wa - Woil) / (Wa - Ww)
hope it helps :)
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holla dued please refer pic above
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