Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 32

EASY

JEE Main

IMPORTANT

Earn 100

An incompressible liquid flows through a horizontal tube as shown in the figure. Then the velocity $v$ of the fluid is :

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Important Questions on Properties of Solid and Liquid

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 33

An application of Bernoulli's equation for fluid flow is found in

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 34

Water is being poured in a vessel at a constant rate

α m^{3} s^{- 1}

. There is a small hole of the area

a

at the bottom of the tank. The maximum level of water in the vessel is

MEDIUM

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 35

If the surface tension of a soap solution is

σ,

The work done in blowing soap bubble of radius

r

is

K

times

π r^{2} σ

. Determine the value of

K

.

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 36

The work done in blowing a soap bubble of

10 cm

radius is

(

surface tension of the soap solution is

\frac{3}{100} N m^{- 1}

)

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 37

A molecule of a liquid which reaches the surface from interior gains energy because

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 38

The radii of two soap bubbles are $r_{1}$ and

r_{2}

. In isothermal conditions, two meet together in a vacuum. Then the radius of the resultant bubble is given by:

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 39

Energy needed in breaking a drop of radius

R

into

n

identical drops of radii

r

is given by

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 7 - Properties of Solid and Liquid>Level 1>Q 41

Two parallel glass plates are dipped partly in the liquid of density

d

, keeping them vertical. If the distance between the plates is

x

, surface tension for liquid is

T

and the angle of contact is

θ

, then the rise of liquid between the plates, due to capillary, will be