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Byju's Answer
Standard XII
Physics
Atmospheric Pressure
The density o...
Question
The density of the atmosphere at sea level is
1.29
k
g
/
m
3
and
g
=
9.8
m
/
s
2
. Assume that both do not change with altitude, how high should the atmosphere extend?
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Solution
Given,
ρ
=
1.29
k
g
/
m
3
P
=
1
×
10
5
P
a
atmospheric pressure
g
=
9.8
m
/
s
2
The pressure,
P
=
ρ
g
h
h
=
P
ρ
g
=
1
×
10
5
1.29
×
9.8
h
=
7.910
k
m
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Similar questions
Q.
the density of the atmosphere at sea level is 1.29 kg /
m
2
. Assume that it does not change with altitude. The how high would the atmosphere extend?
Q.
Assuming that the atmosphere has the same density anywhere as at sea level
(
ρ
=
1.3
kg/m
3
)
and
g
to be constant
(
g
=
10
m/s
2
)
, what should be the approximate height of the atmosphere so that the atmospheric pressure at sea level is
p
0
=
1.01
×
10
5
N/m
2
?
Q.
Assuming that the atmosphere has the same density anywhere as at sea level
(
ρ
=
1.3
kg/m
3
)
and
g
to be constant
(
g
=
10
m/s
2
)
, what should be the approximate height of the atmosphere so that the atmospheric pressure at sea level is
p
0
=
1.01
×
10
5
N/m
2
?
Q.
At sea level, the atmospheric pressure is
1.04
×
10
5
P
a
. Assuming
g
=
10
m
s
−
2
and density of air to be uniform and equal to
1.3
k
g
m
−
3
, find the height of the atmosphere.
Q.
Assertion :At high altitudes, liquids boil at lower temperatures in comparison to that at sea level. Reason: At high altitudes, atmospheric pressure is low.
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