1
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a capillary tube having area of cross-section A, water rises to a height 'h'. If cross-sectional area is reduced to $$\frac{A}{9}$$, the rise of water in the capillary tube is

A
3h
B
9h
C
h
D
6h
2
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Water rises upto a height $$10 \mathrm{~cm}$$ in a capillary tube. It will rise to a height which is much more than $$10 \mathrm{~cm}$$ in a very long capillary tube if the apparatus is kept.

A
on the surface of the moon.
B
at the north pole.
C
in a lift moving up with an acceleration.
D
on the equator.
3
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A big water drop is divided into 8 equal droplets. $$\Delta \mathrm{P}_{\mathrm{s}}$$ and $$\Delta \mathrm{P}_{\mathrm{B}}$$ be the excess pressure inside a smaller and bigger drop respectively. The relation between $$\Delta \mathrm{P}_{\mathrm{s}}$$ and $$\Delta \mathrm{P}_{\mathrm{B}}$$ is

A
$$\Delta P_B=\Delta P_S$$
B
$$\Delta \mathrm{P}_{\mathrm{B}}=\frac{1}{2} \Delta \mathrm{P}_{\mathrm{S}}$$
C
$$\Delta P_B=\frac{1}{4} \Delta P_S$$
D
$$\Delta P_B=2 \Delta P_S$$
4
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The surface tension of most of the liquid decreases with rise in

A
viscosity of the liquid
B
diameter of capillary
C
temperature of the liquid
D
density of the liquid
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