Physics 2015 JAMB Past Questions - Question 41: When the temperature difference between the wet and dry bulbs of a hygrometer is high, this indicates that

Correct Answer

C

Explanation

When the temperature difference between the wet and dry bulbs of a hygrometer is high, it indicates that the air is relatively dry. The wet bulb temperature represents the lowest temperature that can be reached through evaporative cooling, while the dry bulb temperature represents the actual air temperature. A large difference between these two temperatures suggests that the air is capable of absorbing more moisture through evaporation, indicating lower humidity levels.