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Byju's Answer
Standard VII
Physics
Wind Currents Due to Uneven Heating of Land and Water
What is the a...
Question
What is the air pressure at the sea level?
A
4033.9
g
/
c
m
−
s
2
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B
3013.6
g
/
c
m
−
s
2
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C
2013.6
g
/
c
m
−
s
2
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D
1013.9
g
/
c
m
−
s
2
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Solution
The correct option is
D
1013.9
g
/
c
m
−
s
2
Air pressure at the sea level =
1
a
t
m
=
76
c
m
h
e
i
g
h
t
o
f
m
e
r
c
u
r
y
c
o
l
u
m
n
=
76
×
13.6
×
10
−
3
×
980
=
1013.9
g
/
c
m
−
s
2
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