1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When a large bubble rises from bottom of a water lake to its surface, then its radius doubles. If the atmospheric pressure is equal to the pressure of height $H$ of a certain water column, then the depth of lake will be

A
2H
B
H
C
7H
D
4H
2
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the following statement is correct?

A
Surface energy is potential energy per unit length
B
Surface tension is work done per unit area
C
Surface tension is work done per unit length
D
Surface energy is work done per unit force
3
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two light balls are suspended as shown in figure. When a stream of air passes through the space between them, the distance between the balls will

MHT CET 2019 2nd May Evening Shift Physics - Fluid Mechanics Question 67 English

A
remain same
B
increase
C
may increase or decrease, depending on speed of air
D
decrease
4
MHT CET 2019 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The excess of pressure, due to surface tension, on a spherical liquid drop of radius ' $R$ ' is proportional to

A
$R^{-1}$
B
$R$
C
$R^{-2}$
D
$R^2$
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