Physics, 27.02.2020 02:49, myaj580

Which of the following statements about thermal radiation is always true?

-A hot object emits more radiation per unit surface area than a cool object.

-All the light emitted by hot object has higher energy than the light emitted by a cooler object.

-A hot object produces more total infrared emission than a cooler object.

-A cold object produces more total infrared and radio emission per unit surface area than a hot object.

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 16:30, ericuh

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

Answers: 3

continue

Physics, 22.06.2019 04:00, mathnation1

If steel is more dense that lake water, why can a boat float

Answers: 1

continue

Physics, 22.06.2019 15:30, anahitrejo1

1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?

Answers: 1

continue

Physics, 22.06.2019 17:30, janicemaxwell123

Does heating a metal wire increase or decrease its electrical resistance? why?