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The coefficient of elasticity normally

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Important Questions on Elasticity

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IMPORTANT

MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Elasticity>Competitive Thinking>Q 13

Young's modulus for a wire of length

L

and area of cross - section

A

Y

. What will be Young's Modulus for wire of same material, but half its original length and double its area?

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Elasticity>Competitive Thinking>Q 14

A wire of length $L$ is hanging from a fixed support. The length changes to $L_{1}$ and $L_{2}$ when masses $M_{1}$ and $M_{2}$ are suspended respectively from its free end. Then $L$ is equal to

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Elasticity>Competitive Thinking>Q 15

Under the action of load

F_{1},

the length of a string is

L_{1}

and that under

F_{2},

L_{2}

. The original length of the wire is

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Elasticity>Competitive Thinking>Q 16

The Young's modulus of a material is

2 \times 10^{11} N m^{- 2}

and its elastic limit is

1 \times 10^{8} N m^{- 2}

. For a wire of

1 m

length of this material, the maximum elongation achievable is

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Elasticity>Competitive Thinking>Q 17

When a load of

80 N

is suspended from a string, its length is

101 mm

. If a load of

100 N

is suspended, its length is

102 mm

. If a load of

160 N

is suspended from it, then length of the string is (Assume the area of cross-section unchanged)

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Elasticity>Competitive Thinking>Q 18

The ratio of the lengths of two wires

A

and

B

of same material is

1 : 2

and the ratio of their diameters is

2 : 1

. They are stretched by the same force, then the ratio of increase in length will be

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Elasticity>Competitive Thinking>Q 19

Two wires are made of the same material and have the same volume. The first wire has cross-sectional area $A$ and the second wire has cross-sectional area $3 A$ . If the length of the first wire is increased by $Δ l$ on applying a force $F$ how much force is needed to stretch the second wire by the same amount?

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 13 - Elasticity>Competitive Thinking>Q 20

Four wires of same material but having different length and radii are subjected under same load. Which of the following combination of length

L

and radius

r

will have the highest elongation?

The coefficient of elasticity normally

Important Questions on Elasticity

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