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1
MHT CET 2026 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0
The energy needed for breaking a liquid drop of radius 'R' into 'n' droplets each of radius 'r' is
[ $T$ = surface tension of the liquid]
A
$4\pi T R^2 \left[\dfrac{R}{r} - 1\right]$
B
$4\pi T R \left[\dfrac{R}{r} - 1\right]$
C
$4\pi T \left[\dfrac{R^2}{r^2} - 1\right]$
D
$4\pi T \left[1 + \dfrac{R^3}{r}\right]$
2
MHT CET 2026 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0
In most liquids, with rise in temperature surface tension of liquid
A
decreases
B
increases
C
remains unchanged
D
first decreases and then increases
3
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
$8\pi TD^2$
4
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
$1:4$
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