Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, �

Question

Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, ρ = Density of substance, S = Specific heat, and k = Thermal conductivity)

Options:

A . h = k/ ρS

B . h = ρS/k

C . h = S/ρk

D . h = kρ/S

Answer: Option A

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