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Karnataka Board PUCPUC Science Class 11

Read the Following Statements Below Carefully and State, with Reasons, If It is True Or False the Young’S Modulus of Rubber is Greater than that of Steel;

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Question

Read the following statements below carefully and state, with reasons, if it is true or false

The Young’s modulus of rubber is greater than that of steel;

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Solution

False

For a given stress, the strain in rubber is more than it is in steel.

Young’s modulus, Y = Stress/Strain

For a constant stress: `Y prop 1/Strain`

Hence, Young’s modulus for rubber is less than it is for steel.

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Chapter 8: Mechanical Properties of Solids - Exercises [Page 243]

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NCERT Physics Part 1 and 2 [English] Class 11
Chapter 8 Mechanical Properties of Solids
Exercises | Q 4.1 | Page 243

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