Monday, May 3, 2010


1.   This is what i learned about optics.  I learned that because of the law of reflection, the angle of incidence is equal to the angle of reflection. I learned how to draw the rays of the reflection's of the mirrors. I learned how to tell the difference between a virtual and real image, and i learned how to fin the image of an object by drawing rays. I learned all the different equations of mirrors, and i learned that if the distance of the image is +, then it is real (mirrors). Then i learned all about lenses. I learned how to draw the rays for lenses. Finally, i learned about total internal reflection. For incident angles greater than the critical angle, there is no refracted ray at all, causing total internal reflection.

2.  What i have found difficult about optics is knowing how to draw the rays for all the different types of mirrors and lenses. For mirrors, there are convex, concave and flat. For lenses there are diverging and converging. For each of these, there are three rays.  Luckily we only had to know 2! I got confused on all the different rays, and then got confused on how to tell which image was real or virtual.

3.  My problem solving skills were the strongest they ever have been during this chapter. I was not intimidated at all by any long problems, and I always knew how to do them. I took them step by step, and solved them fully. The only thing i had a little trouble on was realizing whether and image was real or virtual, but i eventually learned how to tell the difference!

1 comment:

  1. Once again you did a very good job with your reflection! I hope that by now you realize the value of reflections. Wouldn't it be great if you keep doing reflections next year on other subjects? I bet it will be tremendously helpful!
    Keep up the GREAT work!