What determines whether an object is a net absorber or a net emitter of radiant energy at a given time?
Solution 18RQ Step 1: An object will emit or absorb radiant energy depends on the temperature. The temperature of the surroundings and the object will decide whether it will emit energy or absorb energy. If temperature of the object is more, it will emit radiation. If the temperature of surroundings is more, the object will absorb the radiant energy. Conclusion: The temperature of the surroundings and the object will decide whether it is an absorber or emitter of radiant energy.