Question

statement (1): A solid on heating undergoes expansion only because of increasing the amplitude of the simple oscillators.

statement (2): A solid on heating undergoes expansion only because of increasing the interatomic distance.

• A. statement 1 and statement 2 are correct and statement 2 is correct explanation for statement 1
• B. statement 1 and statement 2 are correct and statement 2 is not correct explanation for statement 1
• C. statement 1 is true and statement 2 is false
• D. statement 1 is wrong and statement 2 is true

Answer 1

The correct option is A statement 1 and statement 2 are correct and statement 2 is correct explanation for statement 1

Since expansion leads to an increase in interatomic distance, therefore, an amplitude of interatomic oscillations will definitely increase therefore statement 1 is true and statement 2 is correct explanation of it