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Question
Why is the modulus of rigidity exclusive to solids?
Options
Solids have a definite volume
Solids are denser than liquids
Only solids have a definite shape
Solids conduct heat better
MCQ
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Solution
Only solids have a definite shape
Explanation:
Modulus of rigidity measures resistance to shape change. Only solids have a definite shape, so this property applies only to them. Liquids and gases don't have fixed shapes.
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