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What is the correct answer?
4
Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, ρ = Density of substance, S = Specific heat, and k = Thermal conductivity)
A.
h = k/ ρS
B.
h = ρS/k
C.
h = S/ρk
D.
h = kρ/S
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