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NEETPhysicsMechanical Properties of Solids

Assertion (A): For a given material, the breaking stress is independent of its length. Reason (R): Breaking stress is the maximum stress a material can withstand before fracturing, and it is an intrinsic property of the material.

Options

  1. ABoth (A ) and (R ) are true and (R ) is the correct explanation of (A ).
  2. BBoth A and R are true but R is not the correct explanation of A.
  3. C(A ) is true but (R ) is false.
  4. D(A ) is false but (R ) is true.

Correct answer

A. Both (A ) and (R ) are true and (R ) is the correct explanation of (A ).

Step-by-step solution

Breaking stress is a characteristic property of a material, representing the maximum stress it can endure before breaking, irrespective of its dimensions (length or cross sectional area). Therefore, Assertion (A) is true. Reason (R) correctly explains that breaking stress is an intrinsic property of the material, supporting why it's independent of length.

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