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Mechanical Properties of Solids

Elastic energy

Directions Assertion-Reason type. Each of these contains two S

Question

Medium

Solving time: 3 mins

Directions Assertion-Reason type. Each of these contains two Statements : Statement I (Assertion), Statement II (Reason). Each of these questions also has four alternative choices, only one of which is correct. You have to select the correct choices from the codes Assertion Two identical springs of steel and copper are equally stretched. More work will be done on steel than copper. Reason Steel is more elastic than copper.

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not correct explanation of the Assertion

If Assertion is true but Reason is false

If Assertion is false but the Reason is true

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Book:

Master Resource Book in JEE Main Physics (Arihant)

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Directions Assertion-Reason type. Each of these contains two Statements : Statement I (Assertion), Statement II (Reason). Each of these questions also has four alternative choices, only one of which is correct. You have to select the correct choices from the codes Assertion Two identical springs of steel and copper are equally stretched. More work will be done on steel than copper. Reason Steel is more elastic than copper.

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Text solutionVerified

Work done in stretching a spring of spring constant

k

W = \frac{1}{2} k x^{2}

W \propto k

where

x

is constant. Since,

k

for steel is more than for copper, hence more work will be done on steel than copper.

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Question Text	Directions Assertion-Reason type. Each of these contains two Statements : Statement I (Assertion), Statement II (Reason). Each of these questions also has four alternative choices, only one of which is correct. You have to select the correct choices from the codes Assertion Two identical springs of steel and copper are equally stretched. More work will be done on steel than copper. Reason Steel is more elastic than copper.
Topic	Mechanical Properties of Solids
Subject	Physics
Class	Class 11
Answer Type	Text solution:1
Upvotes	51

Text solutionVerified

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