## Thursday, October 7, 2010

### Lasers and Light- period 2

Today we learned about how the laser reflects off of a curved mirror. How would the laser travel? The protractor has a invisible normal line, also known as 90 degrees. The formula we followed was m
Our procedures for finding the reflective ray is:

1. Place a mirror on a flat surface.

2. Put the protractor perpendicular to the mirror.

3. Shine the lazer at the mirror through the protector, perpendicular to the mirror.

4. Point the incident ray at the mirror through the protractor to get a reflective ray.

5. Repeat by starting at 10 degrees and increase by 10 degrees until you hit 90 degrees.

This was my prediction for:

10 degrees- 10 degrees

20 degrees- 20 degrees

30 degrees- 32 degrees

40 degrees- 40 degrees

50 degrees- 55 degrees

60 degrees- 63 degrees

70 degrees- 71 degrees

80 degrees- 87 degrees

90 degrees- 90 degrees

Our class data was for the actual measurement:

10 degrees- 12 degrees

20 degrees- 21 degrees

30 degrees- 30 degrees

40 degrees- 41 degrees

50 degrees- 52 degrees

60 degrees- 61 degrees

70 degrees- 70 degrees

80 degrees- 79 degrees

90 degrees- 90 degrees

S.D