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Q. No.Reason: Rubber is more elastic than steel.
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: Stress versus strain plotting makes the graph independent of the geometry of the sample body and reflects only the material property.
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: Elastomers show elastic hysteresis.
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe stress-strain graphs for the two materials are shown in the figure. (assumed same scale)
(a) Material (ii) is more elastic than material (i) and hence material (ii) is more brittle
(b) Material (i) and (ii) have the same elasticity and the same brittleness
(c) Material (ii) is elastic over a larger region of strain as compared to (i)
(d) Material (ii) is more brittle than material (i)
The correct statements are:
1. (a, c)
2. (c, d)
3. (b, c)
4. (b, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA wire is suspended from the ceiling and stretched under the action of a weight F suspended from its other end. The force exerted by the ceiling on it is equal and opposite to the weight.
(a) Tensile stress at any cross-section A of the wire is F/A.
(b) Tensile stress at any cross-section is zero.
(c) Tensile stress at any cross-section A of the wire is 2F/A.
(d) Tension at any cross-section A of the wire is F.
The correct statements are:
1. (a, b)
2. (a, d)
3. (b, c)
4. (a, c)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: Energy transfer in case of soft is large as in hard steel.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: \( B=-\frac{\Delta p}{\Delta V / V} \), where symbols have their usual meaning.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: For a perfectly plastic body, restoring force is zero.
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: The bridges lose their elastic strength with time.
1. Both assertion and reason are true and the reason is the correct explanation of assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. Assertion is true but the reason is false.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: Steel is more elastic than copper.
1. Both assertion and reason are true and the reason is the correct explanation of assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. Assertion is true but the reason is false.
4. Both assertion and reason are false.
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