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JAMB Geography 2023 Paper
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© africaexams.com
Question : 62
Total: 75
What is the temperature around an aeroplane flying at an altitude of 4000metres if the temperature on the earth's surface is
4
0
º
c
40
º
c
?
?');
1
4
0
C
14
0
C
6
6
0
C
66
0
C
2
6
0
C
26
0
C
(\12^0C\)
Validate
Solution:
Lapse rate is simply described as 0.65°C per 100m of ascent or 6.5ºC per 1000m of ascent.
Therefore 4000m of ascent= 6.5ºC x 4000m/1000m=26.0ºC
Then, the temperature around the aeroplane is = 40ºC - 26ºC = 14°C
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