Asked by Paulina
in the hare's apparatus water rises to a height of 26.5cm in one limb.if a liquid rises to a height of 20.4cm in the other limb .what is the relative density of the liquid?
Answers
Answered by
DrBob222
p = rho = density
p1*26.5 = p1*20.4
p1*26.5 = p1*20.4
Answered by
R_scott
the density ratio is the inverse of the height ratio
Answered by
R_scott
I think the Dr meant ... p1 * 26.5 = p2 * 20.41
Answered by
DrBob222
To be honest about it I don't know what I meant. Two ratios are possible and I didn't know which the student wanted.
From the web site https://physicsmax.com/to-compare-the-densities-of-two-liquids-by-means-of-hares-apparatus-6248
p1h1 = p2h2
Then I interpret the problem as p1*26.5 = p2*20.4. The problem says the height is 26.5 "in one limb". The height is 20.5 in the "other limb". "one limb" and "the other limb" doesn't do much to tell me which is h1 and which is h2. So the ratio is 26.5/20.4 or 20.4/26.5 depending upon how we interpret one limb and the other limb. Perhaps I shouldn't have answered the question since I couldn't interpret it properly. But I'm a sucker at trying to help. :-)
From the web site https://physicsmax.com/to-compare-the-densities-of-two-liquids-by-means-of-hares-apparatus-6248
p1h1 = p2h2
Then I interpret the problem as p1*26.5 = p2*20.4. The problem says the height is 26.5 "in one limb". The height is 20.5 in the "other limb". "one limb" and "the other limb" doesn't do much to tell me which is h1 and which is h2. So the ratio is 26.5/20.4 or 20.4/26.5 depending upon how we interpret one limb and the other limb. Perhaps I shouldn't have answered the question since I couldn't interpret it properly. But I'm a sucker at trying to help. :-)
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