Question

statement (1): When a bimetallic strip made of iron and brass is heated then it bends in the form of concave towards Brass.
statement (2): The coefficient of linear expansion of iron is less than brass.

• 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 2
• 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 D statement 1 is wrong and statement 2 is true

Since coefficient of linear expansion of brass is more than that of iron therefore brass will expand more and expansion will be such that convex side will be brass.
therefore, statement 1 is wrong option (D)