The height of a mercury barometer is 75 cm at sea level and 50 cm at the top of a hill. Ratio of density of mercury to that of air is 10 4 . The height of the hill is
Text Solution
Verified by ExpertsThe correct answer is:
B
Difference of pressure between sea level and the top of hill
Δ Δ P 
…(i)
and pressure difference due to h meter of air
Δ Δ P = 
…(ii)
By equating (i) and (ii) we get
∴ ∴ Height of the hill = 2.5 km.
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