Dry
Day 1 - 30^\circC | Day 2 - 29^\circC | Day 3 - 25^\circC
Wet
Day 1 - 22^\circC | Day 2 - 22^\circC | Day 3 - 21^\circC
The reading above are for three consecutive days from a wet and dry bulb hygrometer. It can be concluded that the relative humidity for the three days
A
decreased steadily
B
remained unchanged
C
increased steadily
D
was least on Day 1
Verified Correct Answer: C.
Physical Principles & Numerical Solution
1
2
3
Dry
30^\circC
29^\circC
25^\circC
Wet
22^\circC
22^\circC
21^\circC
Diff
8^\circC
7^\circC
4^\circC
\(Relative Humidity \propto \frac{1}{temp}\)
Hence, There is a steady increase in the relative humidity between Day 1 and Day 3
Source: Myschool Past Questions Archive (Record #706)