What is the net amount of energy per unit time being received by a body having a temperature of 40 °C in a surrounding of 60°C? (The surface area of body = 2m2, σ = 5.67*10-8W/ m2K4 & emissivity of 0.4).

MCQs on temperature measurement, ideal-gas equation, absolute temperature, thermal expansion, matter specific heat capacity, calorimetry, state changes, heat transfer and cooling newtons law.