Science 10
1. Explain the relationship between frequency and wavelength of EM waves.
2. How are EM waves used in your everyday life?
3. What is the significance of the development of EM waves to human live?
1. Explain the relationship between frequency and wavelength of EM waves.
2. How are EM waves used in your everyday life?
3. What is the significance of the development of EM waves to human live?
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1. Explain the relationship between frequency and wavelength of EM waves.
- Electromagnetic waves always travel at the same speed (299,792 km per second). They are all related by one important equation: Any electromagnetic wave's frequency multiplied by its wavelength equals the speed of light.
2. How are EM waves used in your everyday life?
- Everyday life is pervaded by artificially made electromagnetic radiation: food is heated in microwave ovens, airplanes are guided by radar waves, television sets receive electromagnetic waves transmitted by broadcasting stations, and infrared waves from heaters provide warmth.
3. What is the significance of the development of EM waves to human live?
- Electromagnetic waves are used to transmit long/short/FM wavelength radio waves, and TV/telephone/wireless signals or energies. They are also responsible for transmitting energy in the form of microwaves, infrared radiation (IR), visible light (VIS), ultraviolet light (UV), X-rays, and gamma rays.
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