DAY 87

Warm-Up:

1. What is a laser?

2. What are lasers used for?

3. Why is laser not spelled with a z?

4. What makes laser light different from the light emitted from a regular light?

5. What does "diameter" mean?

Classwork: 

https://www.youtube.com/watch?v=oUEbMjtWc-A

https://www.youtube.com/watch?v=lW4Uq_2VPhE

https://www.google.com/search?q=laser+interference&safe=strict&rlz=1C1LENP_enUS514&espv=2&biw=1024&bih=705&tbm=isch&imgil=AgXo6S3MFVrTeM%253A%253BXENzIUI-AvVuqM%253Bhttp%25253A%25252F%25252Fscienceblogs.com%25252Fprinciples%25252F2010%25252F11%25252F15%25252Fhow-do-you-see-interference-be%25252F&source=iu&pf=m&fir=AgXo6S3MFVrTeM%253A%252CXENzIUI-AvVuqM%252C_&usg=__itWiCmJYRIjggnqlxVuqRFVc9k0%3D&ved=0ahUKEwjAyabRuofNAhVQImMKHWucATEQyjcILA&ei=cilPV8DIB9DEjAPruIaIAw#imgrc=AgXo6S3MFVrTeM%3A

https://www.youtube.com/watch?v=J_xd9hUZ2AY

https://www.youtube.com/watch?v=egRFqSKFmWQ

Measuring Hair Diameter Using Diffraction Patterns