JEE Main 11 April 2015 Paper

Section: Physics

Question : 9 of 90

Marks: +1, -0

A beaker contains a fluid density ρkg/m3,specific heat SJ/Kg°C and viscosity η.The beaker is filled up to height h.To estimate the rate of heat transfer per unit area (

∙

/A) by convection whenbeaker is put on a hot plate, a student proposes that it should depend on η, (

S∆θ

) and (

ρg

) when ∆θ (in °C) is the difference in the temperature between the bottom and top of the fluid. In that situation the correct option for(

∙

/A) is:

[Main 11 Apr 2015]

η
S∆θ
h
η(
S∆θ
h
)(
1
ρg
)
S∆θ
ηh
(
S∆θ
ηh
)(
1
ρg
)

Validate

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