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Byju's Answer
Standard XII
Physics
Speed of Efflux
If the veloci...
Question
If the velocity head of a stream of water is equal to
10
cm
, then its speed of flow is approximately
A
1.2
m/s
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B
1.4
m/s
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C
1.7
m/s
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D
1.8
m/s
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Solution
The correct option is
B
1.4
m/s
Given,
Velocity head,
h
=
10
cm
=
0.1
m
We know that velocity head
h
is given by,
h
=
v
2
2
g
⇒
v
=
√
2
g
h
=
√
2
×
10
×
0.1
=
√
2
m/s
=
1.4
m/s
Suggest Corrections
25
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