Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 57

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What is the terminal velocity of air bubble of $1.0 mm$ in diameter rising in liquid of viscosity $0.85 N - s m^{- 2}$ and density $900 kg m^{- 3}$ ?(air density $1.293 kg m^{- 3}, g = 9 m s^{- 2}]$

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Important Questions on Properties of Bulk Matter

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Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 58

The Young's modulus of a perfectly rigid body,

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Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 59

When a pressure of

100 atmosphere

is applied on a spherical ball, its volume reduces to

0.01 %

. The bulk modulus of the material of the rubber, in

dyne {cm}^{- 2}

, is

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Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 60

If

S

is the stress and

Y

is Young's modulus of material of a wire, the energy stored in the wire per unit volume is

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Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 61

The length of a metal wire is

l_{1}

when the tension in it is

T_{1}

and is

l_{2}

when the tension is

T_{2}

. The natural length of wire is

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Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 62

The stress-strain curves for brass, steel and rubber are shown in the figure. The lines $A, B$ and $C$ are for

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Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 63

A copper wire and a steel wire of the same diameter and length are connected end to end and a force is applied which stretches their combined length by

1 cm

. The two wires will have

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Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 64

The value of Poisson's ratio lies between

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Physics Crash Course NEET>Chapter 7 - Properties of Bulk Matter>Level 1>Q 65

A given quantity of a gas is at pressure

P

and absolute temperature

T

. The isothermal bulk modulus of the gas is