Light

Light & Electromagnetic waves Jitesh Aggarwal XII Science (2011-12) FAITH ACADEMY

A light review: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sensing Light ,[object Object],[object Object],Did you realize cameras and camcorders are light detectors too?

What is light really? Elec trom agne tic radi atio n wa ves ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],wavelength

*Electromagnetic Radiation ,[object Object],[object Object],[object Object],[object Object]

Remember radio waves are long…and gamma rays are small Radio-TV -Microwave- Infrared - VISIBLE -Ultraviolet -X-rays - Gamma- Cosmic

Radio (Longest electromagnetic waves) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Television ,[object Object],[object Object]

Microwave ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Infrared (Heat or Thermal) Are you a source of infrared? YES you are! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Let’s take a look at Herschel’s Experiment ,[object Object],[object Object],[object Object],[object Object]

Let’s set up Herschel’s Experiment ,[object Object]

Conducting Hershel’s Experiment ,[object Object],[object Object],[object Object],[object Object]

Visible Eac h co lor is a differe nt si ze w ave . Red the longest & violet the shortest ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],RoyG.Biv

Prism Power: R o y G . B i v Activity ,[object Object],[object Object],[object Object],[object Object],[object Object],*PASCO Probe Activity OR *AIMS:Primarily Physics: Prism Power Activity

Ultraviolet Sunburn / black light ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],He can get skin cancer!

X-ray ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chandra X-ray Observatory ,[object Object],[object Object],[object Object],Chandra X-ray Observatory

Gamma Ray (Short electromagnetic waves but more energetic) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sources of g-ray Emission ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

COSMIC Rays ( The highest energy waves and the deadliest) ,[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],How big are the waves?

Light

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