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1
MHT CET 2026 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
One large soap bubble of diameter 'D' breaks into $64$ bubbles having surface tension 'T'. The change in surface energy is
A
$2\pi TD^2$
B
$4\pi TD^2$
C
$6\pi TD^2$
D
$8\pi TD^2$
2
MHT CET 2026 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
The pressures inside two soap bubbles A and B are $1.02$ atmosphere and $1.04$ atmosphere respectively. The ratio of volume of bubble A to that of bubble B is (outside pressure $= 1$ atmosphere)
A
$1:8$
B
$8:1$
C
$4:1$
D
$1:4$
3
MHT CET 2026 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
An in-compressible fluid flows steadily through a horizontal cylindrical pipe. The pipe has radius '$3R$' at point A and '$1.5R$' at point B, further along the flow direction at the same level. If the velocity at point A is '$v$', then that at point B is
A
$v$
B
$2v$
C
$3v$
D
$4v$
4
MHT CET 2025 5th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The liquid (mercury) meniscus in capillary tube will be convex if the angle of contact is

A

greater than $90^{\circ}$

B

less than $90^{\circ}$

C

equal to $90^{\circ}$

D

equal to $0^{\circ}$

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