ISC Physics Class XI Part 1>Chapter 18 - Elasticity>QUESTIONS>Q 13

HARD

11th ICSE

IMPORTANT

Earn 100

Derive the formula for the force developed on the clamps when the temperature of a wire stretched between two claims is it changed.

Important Questions on Elasticity

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 18 - Elasticity>NUMERICALS>Q 1

A weight of

1.0 kg

is suspended from the lower end of a wire of cross-section

100 {mm}^{2}

. Find the magnitude and direction of the stress produced in it

(g = 9.8 m / s^{2})

.

EASY

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 18 - Elasticity>NUMERICALS>Q 2

In order to produce a longitudinal strain of

2 \times 10^{- 4}

, a stress of

2.4 \times 10^{7} N / m^{2}

is produced in a wire. Calculate the Young's modulus of the material of the wire.

EASY

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 18 - Elasticity>NUMERICALS>Q 3

A copper wire has a length of

2.2 m

. Its diameter is

7 \times 10^{- 4} m

. What will be elongation in its length when a

5 kg

weight is suspended? (

Y_{c a r} = 1.25 \times 10^{11} N / m^{2}

and

g = 10 m / s^{2}

)

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 18 - Elasticity>NUMERICALS>Q 4

If Young's modulus for steel is

2.0 \times 10^{11} N / m^{2}

then how much weight be suspended from a steel wire of length

2.0 m

and diameter

1.0 mm

so that the of the wire be increased by

1.0 mm

?

(g = 9.8 m / s^{2})

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 18 - Elasticity>NUMERICALS>Q 5

If the length of a wire increase by

1 mm

under

1 kg

weight what will be the increases under

2 kg

?

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 18 - Elasticity>NUMERICALS>Q 6

The length of wire increases by $1 %$ on loading a $2 kg$ weight. Calculate the linear strain in wire.

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 18 - Elasticity>NUMERICALS>Q 7

The length of wire increases by

8 mm

when a weight of

5 kg

is suspended from it. If other thing remain the same the radius of the wire doubled, what will be the increase in its length?

EASY

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 18 - Elasticity>NUMERICALS>Q 8

If Young's modulus of steel is

2.0 \times 10^{11} N / m^{2}

then how much weight be suspended from a steel wire of length

2.0 m

and diameter

1.0 mm

so that the length of wire be increased by

1.0 mm

.

(g = 9.8 m / s^{2})