Which of the following is a good conductor of heat?

Which of the following statements is/are false? a. The clinical thermometer range is between 35 degree celsius to 42 degree celsius. b. Light coloured objects, absorb more heat radiations than the dark coloured objects. c. A clinical thermometer has a kink that prevents the mercury to rise or fall.

Which of the following is/are the precautions to be observed while reading laboratory thermometer?

Which of the following is a bad conductor of heat?

Which of the following statements is/are false? a. No medium is required for transfer of heat by radiation. b. The range in a laboratory thermometer is from 0 degrees to 90 degrees centigrade. c. The process of transference of heat in material bodies due to the actual movement of the particles of the medium is called convection.

Which of the following form of energies is transferred from one body to another body due to temperature differences between them?

Which of the following is not a condition for the transfer of heat energy by conduction between two objects? a. The two objects must be in contact with one another. b. The objects must be made up of same metal, so that heat energy can transfer from one to another. c. The temperature of both the objects must be different from one another.

Which of the following instruments is used to measure very high temperatures like those of flames, furnaces, ovens. etc.

Rahul's mother wants to check the body temperature of her son. Which of the following device should she use?

Convection cannot take place in _______________.

The normal temperature of human body is ____________.

By which of the following processes is the impure and warm air inside a room continuously replaced by fresh air from outside?

Which of the following is the lower standard point of ice?

Which of the following statements is/are false? a. Convection is the fastest mode of heat transfer from a hot body to a cold body. b. Black bodies are good absorbers of radiant heat whereas white bodies are poor absorbers of radiant heat. c. Convection is not possible in a solid because the molecules of a solid are held strongly due to intermolecular forces.

Which of the following statements is/are false? a. The undersides of a cooking vessel is made black because black underside absorbs radiant heat rapidly from the fire. b. The radiant heat, a kind of electromagnetic energy, travels in space at the speed of 3 * 10⁵ km/sec. c. The process of convection is not possible in air.