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A beaker contains a fluid of density ρ kg / m3 , specific heat  SJ/kgºC and viscosity η. The beaker is filled upto height h. To estimate the rate of heat transfer per unit area (Q/A) by convection when beaker is put on a hot plate, a student proposes that it should depend on η, (sΔθ/h) and (1/ρh) when Δθ (in ºC) is the difference in the temperature between the bottom and top of the fluid. In that situation the correct option for (Q/A) is :

(1)  η (sΔθ/h) (1/ρh)

(2)  (sΔθ/ηh) (1/ρh

(3)   sΔθ/ηh

(4)  η sΔθ/h

1 Answer

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Best answer

Correct option  (4)  η sΔθ/h

Explanation:

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