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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS
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The elastic limit of brass is . What should be the minimum diameter of a brass rod, if it is to support a load without exceeding its elastic limit
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Correct option: C
Option C (1.16 mm) is correct because it calculates the minimum diameter required to support the load without exceeding the elastic limit.
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Reason: Modulus of elasticity is a material property. A wire can be broken by applying a load of 200 N. The force required to break another wire of the same length and same material, but double in diameter, is Assertion(A): If radius of cylindrical wire is doubled, then this wire can bear four times stress.
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