Tuesday, 15 November 2011

The Mathematics behind Curved Mirrors


Today in Physics 20 we started the class by viewing the a blog post from the previous day which we usually do. We also reviewed any questions and went over the difference between a converging mirror and a diverging mirror where Mr.Banow also brought out some examples to show the class.

For most of the period we individually worked on our "Curved Mirror Question Package" which had a variety of questions about curved mirrors (diverging, converging). some questions asked us to draw the rays of light and image on a converging or diverging mirror. some questioned asked what the image would look like when the object was placed in a different place in front of the converging/diverging mirror.
ex:









If the object is placed in front of a converging mirror at C, then the image will be inverted, real, the same size and at C.



Near the end of the package there where mathematical questions using the formulas we learned in class to find measurements such as:

hi: hight of the image
ho: hight of the object
di: the distance between the mirror and the image
do:the distance between the mirror and the object
M: Magnification (x)

In the last 5 minutes of class Mr.Banow showed us a pencil in a glass of water allowing us to describe what the pencil had looked like (broken, and larger) and also showing us how it looked upright (just larger)


The next person to write blog post will be the person who has their birthday next

No comments:

Post a Comment