Properties Of Solids And Liquids Question 467

Question: A vertical column 50 cm long at 50°C balances another column of same liquid 60 cm long at 100°C. The coefficient of absolute expansion of the liquid is [EAMCET 1990]

Options:

A) 0.005/°C

B) 0.0005/°C

C) 0.002/°C

D) 0.0002/°C

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Answer:

Correct Answer: A

Solution:

h1h2=ρ1ρ2=(1+γθ1)(1+γθ2)

[ρ=ρ0(1+γθ)]

therefore 5060=1+γ×501+γ×100

therefore γ=0.005/C



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