Question

In summer, telephone wires sag.

• A. True
• B. False

Answer 1

The correct option is A True

1. Due to the heat, solids are known to expand in length, area and size. These are called linear, superficial, and cubical expansion respectively.
2. Similarly, owing to the high temperature during summer, the telephone and electric wires are known to expand in length, thus they are known to sag.

Hence, the given statement is true.