Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 8

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In a hydraulic jack as shown, mass of the car $W = 800 kg, A_{1} = 10 {cm}^{2}, A_{2} = 10 m^{2} .$ The minimum force $F$ required to lift the car is

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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 9

A barometer tube reads

75 cm

of

Hg .

If tube is gradually inclined at an angle of

30 °

with horizontal, keeping the open end in the mercury container, then find the length of mercury column in the barometer tube

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 11

A block of steel of size

5 \times 5 \times 5 {cm}^{3}

is weighed in water. If relative density of steel is

7,

its apparent weight is

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 12

A block of wood floats in water with

\frac{4}{5}

th of its volume submerged, but it just floats in another liquid. The density of liquid is [in

kg m^{- 3}

)

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

A body of density

ρ

is dropped from rest at a height

h

into a lake of density

σ

, where

σ > ρ

. Neglecting all dissipative forces, calculate the maximum depth to which the body sinks before returning to float on the surface

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

Two liquids having densities

d_{1}

and

d_{2}

are mixed in such a way that both have same mass. The density of the mixture is

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

A metallic sphere weighing

3 kg

in air is held by a string so as to be completely immersed in a liquid of relative density

0.80 .

The relative density of metallic is

10 .

The tension in the string is

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 16

A rectangular block is

10 cm \times 10 cm \times 15 cm

in size is floating in water with

10 cm

side vertical. If it floats with

15 cm

side vertical, then the level of water will

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Gamma Question Bank for Medical Physics>Chapter 10 - Mechanical Properties of Fluids>Assignment>Q 17

Two cubical blocks identical in dimensions float in water in such a way that

1 st

block floats with half part immersed in water and second block floats with

\frac{3}{4}

of its volume inside the water. The ratio of densities of blocks is