Question

Which of the following statements is/are correct?

1. Heat flows from the cold body to the hot body.
2. Temperature is a measure of hotness or coldness.
3. Thermometer is used to measure temperature.

• A. 2 only
• B. 1 and 2 only
• C. 1, 2 and 3
• D. 2 and 3 only

Answer 1

The correct option is D 2 and 3 only

Heat flows due to the difference in temperature of the bodies. It flows from the hot body to the cold body. Thus, statement 1 is incorrect.
Temperature is a measure of hotness or coldness. Thus, statement 2 is correct.
Temperature is measured by a device called a thermometer. Thus, statement 3 is correct.
Hence, statements 2 and 3 are correct.