Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoHeat TransferEasy2 min
PhysicsEasyinteger
A shiny foil has emissivity 0.05 and a dull side has emissivity 0.80. At the same temperature, find the ratio of the power radiated by the dull side to that by the shiny side (whole number).
Answer:
16
Solution:
at a given temperature and area. Ratio = . The shiny side loses much less heat by radiation.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer
⏱ 2m
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