Question

statement(1): An iron ball struck in a brass plate is removed by heating the system.
Statement(2): The coefficient of linear expansion of brass is more than that of iron.

• 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 coefficient of linear expansion of brass is more than iron it will expand more than iron and the stuck iron ball will be no more stucked and we can remove it easily.
Therefore, option(A) is correct.