Tuesday, August 18, 2015

EJSS Light Reflection Model

EJSS Light Reflection Model

Question: Suggest with evidences, a relationship between ∠i and ∠r.


Light Reflection showing 2 light rays entering the eye
angle of incidence is always equal to angle of reflection |i| = |r|
http://weelookang.blogspot.sg/2015/08/ejss-light-reflection-model.html
run: Link1, Link2
download: Link1, Link2
source: Link1, Link2
author: leongster, lookang
author EJS: Francisco Esquembre

Light Reflection showing 4 light rays entering the eye
angle of incidence is always equal to angle of reflection |i| = |r|
http://weelookang.blogspot.sg/2015/08/ejss-light-reflection-model.html
run: Link1, Link2
download: Link1, Link2
source: Link1, Link2
author: leongster, lookang
author EJS: Francisco Esquembre

Light Reflection showing 1 light ray entering the eye
angle of incidence is always equal to angle of reflection |i| = |r|
http://weelookang.blogspot.sg/2015/08/ejss-light-reflection-model.html
run: Link1, Link2
download: Link1, Link2
source: Link1, Link2
author: leongster, lookang
author EJS: Francisco Esquembre

answer?

angle of incidence is always equal to angle of reflection |i| = |r|



What evidences?

from the data collected of table of angle of incidence∠i and angle of reflection ∠r with the normal line to the plane of the mirror surface.

No.
i / °
r / °
1
10
10
2
20
20
3
30
30
4
40
40
5
50
50
6
60
60
7
70
70
8
80
80

Modeling Activity:

if the x-y axes passes through the mirror at the point of light ray, what is a possible model for ∠i = 45 ° in terms of mathematics using x and y ?


Answer: x = +y and -y for vertical mirror

Answer: y = |x| or y = abs(x) for horizontal mirror


Need to fix bug