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SOUND AND LIGHT WAVES_ CLASS 7

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Light
Documentary on light
https://www.youtube.com/watch?v=yNntDhr2n4g

Reflection of Light
https://www.youtube.com/watch?v=vt-SG7Pn8UU

https://www.youtube.com/watch?v=81u7MGF7ev4

https://www.youtube.com/watch?v=YOwOxeU7wfk&list=PL32D9A6299EBE8021

Walter Lewin Lecture on Sound
https://www.youtube.com/watch?v=GFR8UJK3Mzc

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