Thermal diffusivity of a substance is given by (where h = Thermal diff – McqOptions

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1.	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
Answer» B. h = ρS/k

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