The C.O.P. of an absorption type refrigerator is given by (where T1 = Temperature at which the working substance receives heat, T2 = Temperature of cooling water and T3 = Evaporator temperature)

Answer: Option B

The C.O.P. of an absorption type refrigerator is given by $$\frac{{\text{T}}_3\left({\text{T}}_1-{\text{T}}_2\right)}{{\text{T}}_1\left({\text{T}}_2-{\text{T}}_3\right)}$$
(Where T₁ = Temperature at which the working substance receives heat, T₂ = Temperature of cooling water and T₃ = Evaporator temperature)