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Transverse Longitudinal. Wave Transverse Longitudinal Eg. Sound Eg. Light A component of Electromagnetic Spectrum A component of Electromagnetic Spectrum.

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Presentation on theme: "Transverse Longitudinal. Wave Transverse Longitudinal Eg. Sound Eg. Light A component of Electromagnetic Spectrum A component of Electromagnetic Spectrum."— Presentation transcript:

1 Transverse Longitudinal

2 Wave Transverse Longitudinal Eg. Sound Eg. Light A component of Electromagnetic Spectrum A component of Electromagnetic Spectrum

3 Light is just a component of the Electromagnetic (EM) Spectrum There are altogether 7 components in the spectrum

4 7 main components in the EM spectrum Gamma -ray X-ray Ultra- violet Infra- red Micro wave Radio wave VioletBlueGreenYellow Orange RedIndigo

5 Gamma -ray X-ray Ultra- violet Infra- red Micro wave Radio wave Wavelength LongerShorter Frequency LowerHigher Frequency = no. of complete wave in 1s Wavelength

6 Gamma -ray X-ray Ultra- violet Infra- red Micro wave Radio wave

7 Shortest to Longest wavelength 1.Gamma-ray 2.X-ray 3.Ultraviolet 4.Visible Light 5.Infrared 6.Microwave 7.Radio wave

8 Properties EM waves are all transverse wave The speed of all the EM wave in vacuum is the same How fast is the speed of light in vacuum? –Speed of Light = 3 x 10 8 m/s –Speed of all the EM wave = 3 x 10 8 m/s

9 Properties & Application NamePropertiesApplication Gamma-ray Penetrate matterKill cancer cells X-ray Less penetrating than Gamma- ray Take pictures of bones in the body Ultraviolet Given off by the Sun in large quantities Detect counterfeit notes Visible Light The only EM waves visible to our eyes Enables us to see things Infrared Produced by all objects with temperature higher than 0 Kelvin (-273 o c) Heating Microwave Generated by extremely high frequency electric current Cooking in microwave Radio wave Generated by high frequency electric current TV & radio broadcasting

10 Ultraviolet X-Ray

11 Gamma Ray Infrared Visible Light

12 Microwave Radio wave

13 Conclusion Waves in EM Spectrum are all transverse waves. They travel at the same speed, 3 x 10 8 m/s, in vacuum Gamma -ray X-ray Ultra- violet Infra- red Micro wave Radio wave

14


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