1
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two spherical soap bubbles of radii '$$a$$' and '$$b$$' in vacuum coalesce under isothermal conditions. The resulting bubble has a radius equal to

A
$$a+b$$
B
$$\frac{a+b}{2}$$
C
$$\sqrt{a^2+b^2}$$
D
$$\frac{a+b}{a b}$$
2
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

1000 small water drops of equal size combine to form a big drop. The ratio of final surface energy to the total initial surface energy is

A
$$10: 1$$
B
$$1: 10$$
C
$$1000: 1$$
D
$$1: 1000$$
3
MHT CET 2023 14th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

It is easier to spray water to which soap is added because addition of soap to water

A
decreases surface tension of water
B
increases surface tension of water.
C
makes surface tension of water zero.
D
increases its density.
4
MHT CET 2023 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

By adding soluble impurity in a liquid, angle of contact

A
decreases
B
increases
C
remains unchanged
D
first increases and then decreases
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Medical
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Graduate Aptitude Test in Engineering
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Class 12