Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 13

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A spherical air cavity of radius $R$ is inside a liquid of uniform density $ρ$ and surface tension $T$ as shown in the figure. The excess pressure inside the cavity is $(P_{1}$ is the pressure inside and $P_{2}$ is the pressure outside the cavity)

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Important Questions on Mechanical Properties of Fluids

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 14

Rise or fall of liquid inside the capillary is

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 15

The flow of liquid is streamline if Reynolds number

(R_{e})

is

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 1

The atmospheric pressure at a place is

10^{5} Pa .

If tribromomethane (specific gravity

= 2.9

) be employed as the barometric liquid, the barometric height is

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 2

A large vessel of height

H,

is filled with a liquid of density

ρ,

upto the brim. A small hole of radius

r

is made at the side vertical face, close to the base. The horizontal force is required to stop the gushing of liquid is

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 3

A vertical U-tube of uniform cross-section contains water in both the arms. A

10 cm

glycerine column (R.D.

= 1.2)

is added to one of the limbs. The level difference between the two free surfaces in the two limbs will be

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 4

The pressure at the bottom of a water tank is

4 P,

where

P

is atmospheric pressure. If water is drawn out till the water level decreases by

\frac{3}{5} th,

then pressure at the bottom of the tank is

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 5

An air bubble rises from the bottom of a lake to the surface. If its radius increases by

200 %

and atmospheric pressure are equal to the water column of height

H,

then the depth of the lake is,

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 6

A liquid mixture of volume

V,

has two liquids as its ingredients with densities

α

and

β .

If density of the mixture is

σ,

then mass of the first liquid in mixture is