Lesson
Lesson-11.1.3- Describe typical properties and uses of radiations in all the different regions of the electromagnetic spectrum including: ??? radio and television communications (radio waves) ??? satellite television and telephones (microwaves).
No content available for this lesson.
Lesson-11.1.4- Describe typical properties and uses of radiations in all the different regions of the electromagnetic spectrum including: ??? electrical appliances, remote controllers for televisions and intruder alarms (infrared) ??? medicine and security (X-rays)PreviousLesson-11.1.2- State that all electromagnetic waves travel with the same high speed in a vacuum.Next