What mass of lead will weigh as much
as 6g of iron, when both are immersed
in water.
(Given specific gravities of iron and
lead are 8 and 11 respectively)
Answers
Answered by
12
The mass of lead is 7.7 g
Explanation:
Correct statement:
What mass of lead will weigh as much as 8 gm of iron when both are immersed in water ? (given specific gravities of iron and lead are 8 and 11 respectively).
Apparent weight = W - Fb
Wi = 8xg
Fb = V x ρw x g
= v x ρs x ρw x g/ρs = mg x ρw/ρs
Wi = mg(1 - ρw/ρs)
When Wi = Wl then
= mlg (1 - ρw/ρl)
mi ( 1 - ρw/ρi) = ml x ((1 - ρw/ρl)
mi = 1 - 1/8 = ml x (1 1/11)
mi x 7/8 = ml x 10/11
ml = 7/8 x 8 x11/10 = 7x11/10 = 7.7 g
The mass of lead is 7.7 g
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Answered by
1
Answer:
7.7g
Explanation:
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