ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>QUESTIONS>Q 3

MEDIUM

11th ICSE

IMPORTANT

Earn 100

Obtain an expression for the pressure exerted by a liquid column.

Important Questions on Fluid Pressure

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11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>NUMERICALS>Q 1

A force of

80 N

is applied on a nail, whose tip has a cross-sectional area of

0.002 c m^{2}

. Calculate the pressure on the tip.

EASY

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IMPORTANT

ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>NUMERICALS>Q 2

The weight of a person is

80 k g f

. How much pressure is exerted by him on the ground, when he is lying. Given: area of the body of the person

1.2 m^{2}

and that of a foot is

60 c m^{2}

.

EASY

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>NUMERICALS>Q 2

The weight of a person is

80 k g f

. How much pressure is exerted by him on the ground, when he is standing on both his feet. Given: area of the body of the person

1.2 m^{2}

and that of a foot is

60 c m^{2}

.

EASY

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>NUMERICALS>Q 3

The air-pressure is equal to

75 cm

column of mercury. Express it in

N m^{- 2}

. Given

g = 10 m s^{- 2}

, density of mercury

= 13.6 \times 10^{3} kg m^{- 3}

.

MEDIUM

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IMPORTANT

ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>NUMERICALS>Q 4

Calculate the pressure of seawater at a depth of

200 m

, when the average density of seawater is

1.032 \times 10^{3} k g m^{- 3}

.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 1

A solid sphere of radius

R

and density

ρ

is attached to one end of massless spring of force constant

k

. The other end of the spring is connected to another solid sphere of radius

R

and density

3 ρ

. The complete arrangement is placed in a liquid of density

2 ρ

and is allowed to reach equilibrium. The correct statement (s) is (are)

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IMPORTANT

ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 2

An ‘airtight’ cage with a parrot sitting in it is suspended from a spring balance. The parrot starts flying. The reading of the spring balance will:

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11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 16 - Fluid Pressure>FOR DIFFERENT COMPETITIVE EXAMINATIONS>Q 3

A wire cage with a parrot sitting in it is suspended from a spring balance. The parrot starts flying. The reading of the spring balance will: