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Question 6390
NEET Physics · Medium

Mechanical Properties of Solids: Advanced Solids Mixed MCQ

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Advanced Solids MixedMediumQuestion 6390

Question

Hardness is the resistance to:
  1. A
    Fracture
  2. B
    Permanent surface indentation/scratching
    Correct
  3. C
    Elastic deformation
  4. D
    Thermal expansion

Correct answer

Permanent surface indentation/scratching

Explanation

Hardness = resistance to permanent surface deformation (indentation or scratching).

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