Heat and Thermal ExpansionHard

Question

In Newton′ s law cooling  = - (θ - θ0) the constant k is proportional to

Options

A.A, surface  area of the body
B.S, specific heat of the
C., m being mass of the body
D.e, emissivity of the body

Solution

= eσA (θ4 - θ04) ≈ (3eσAθ03)ᐃθ

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