Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoCalorimetryMedium2 minQB
PhysicsMediumsingle choice
Statement-1: Evaporation cools our body.
Statement-2: When a body radiates, some energy is lost to the surroundings.
Options:
Answer:
B
Solution:
Evaporating sweat takes its latent heat from the body, so the body cools. Statement-1 is true.
A radiating body loses energy to the surroundings. Statement-2 is true.
Cooling by evaporation is due to latent heat taken from the body, not due to radiation. So statement-2 does not explain statement-1.
Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Calorimetry
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
