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Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: A sound wave has higher speed in solids than gases. Reason R: Gases have higher value of Bulk modulus than solids. In the light of the above statements, choose the correct answer from the options given below

1. Both A and R are true and R is the correct explanation of A
2. A is false but R is true
3. Both A and R are true but R is NOT the correct explanation of A
4. A is true but R is false

Correct answer: A is true but R is false

Solution

Assertion A is correct because sound waves travel faster in solids due to closer particle packing, which facilitates quicker energy transfer. However, Reason R is incorrect; solids generally have a higher bulk modulus than gases, not the other way around.

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