Question

Define insulator of heat.

• A. Substances through which heat can pass easily are called insulators of heat.
• B. Substances through which heat cannot pass easily are called insulators of heat.
• C. Substance which can easily freeze are called insulators of heat.
• D. Substances which cannot freeze easily are called insulators of heat.

Answer 1

The correct option is B Substances through which heat cannot pass easily are called insulators of heat.

Materials which allow heat to pass through them are called conductors of heat and the material which does not allow heat to pass through them are called insulators of heat.