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Physics True False[1 Marks ]

Mechanical Properties of Solids · Rajasthan Board (RBSE) STD 11 Science (Rajasthan - English Medium). 2 questions.

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True False[1 Marks ]

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2 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
Read the following two statements below carefully and state, with reasons, if it is true or false. The stretching of a coil is determined by its shear modulus.
Answer
True, because the change takes place in the shape of the coil spring. Therefore, stretching is determined by its shear modulus.
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Question 21 Mark
Read the following two 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.
Answer
False, because the modulus of elasticity is inversely proportional to the strain for a given stress. If steel and rubber are under the same stress, then strain in steel is less than rubber. Hence steel is more elastic than rubber.
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True False[1 Marks ] - Physics STD 11 Science Questions - Vidyadip