1
MHT CET 2023 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If work done in blowing a soap bubble of volume $$V$$ is $$W$$, then the work done in blowing the bubble of volume $$2 \mathrm{~V}$$ from same soap solution is

A
$$W / 2$$
B
$$\sqrt{2} \mathrm{~W}$$
C
$$(2)^{1 / 3} W$$
D
$$(4)^{1 / 3} W$$
2
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A large number of water droplets each of radius '$$t$$' combine to form a large drop of Radius '$$R$$'. If the surface tension of water is '$$T$$' & mechanical equivalent of heat is '$$\mathrm{J}$$' then the rise in temperature due to this is

A
$$\frac{2 \mathrm{~T}}{\mathrm{rJ}}$$
B
$$\frac{3 \mathrm{~T}}{\mathrm{RJ}}$$
C
$$\frac{3 T}{J}\left(\frac{1}{r}-\frac{1}{R}\right)$$
D
$$\frac{2 \mathrm{~T}}{\mathrm{~J}}\left(\frac{1}{\mathrm{r}}-\frac{1}{\mathrm{R}}\right)$$
3
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Twenty seven droplets of water each of radius $$0.1 \mathrm{~mm}$$ merge to form a single drop then the energy released is

A
$$1.6 \times 10^{-3} \mathrm{~J}$$
B
$$1.6 \mathrm{~J}$$
C
$$1600 \mathrm{~J}$$
D
$$1.6 \times 10^{-7} \mathrm{~J}$$
4
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Venturimeter is used to

A
measure liquid pressure.
B
measure liquid density.
C
measure rate of flow of liquids.
D
measure surface tension.
MHT CET Subjects
EXAM MAP