Question

statement (1): Invar steel is used to prepare clock pendulum.
statement (2): The coefficient of linear expansion of invar steel is Infinity.

• 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 C statement 1 is true and statement 2 is false

Invar steel is used because, its coefficient of linear expansion is less. Therefore, statement 2 is false statement 1 is true.
Option (C) is correct