An Open-Book 10-Minute Test of Lab 5: Reflection and Refraction

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An Open-Book 10-Minute Test of Lab 5 of PHYS 2C LAB

Reflection and Refraction

You can only talk to your PARTNER(S) or the Teaching Assistant. If you have the leisure to show off your superior intellect, then I must follow the supervisor's instructions strictly: ask you all to do every thing required by the LAB MANUAL.

The NAME of EXAMINEE:

The NAME of EXAMINEE's partner:

The EXAMINEE's workstation:

Incident Angle, q _i Unit: (degree)	Reflected Angle, q _r (Left, "+") Unit: (degree)	Incident Angle, q _i Unit: (degree)	Reflected Angle, q _r (Right, "-" ) Unit: (degree)
0.0	0.0	-0.0	0.0
10.0	10.0	-10.0	-10.0
20.0	20.0	-20.0	-19.5
30.0	30.5	-30.0	-29.5
40.0	40.5	-40.0	-39.5
50.0	50.5	-50.0	-49.5
60.0	60.0	-60.0	-59.5
70.0	70.5	-70.0	-60.0
80.0	81.0	-80.0	-79.5

Section 1:

Questions:

(0.5 POINT) "A student mistakenly sets the mirror 1 degree off, towards the left side while he is aligning the mirror horizontally. Therefore, when his incident angle is q_incident = 0^o, the reflected angle he gets is q_reflected = 2^o." Is this statement correct?

ANSWER:
(0.5 POINT) Based to the indication of the above statement and the none-zero B, the y-intercept here, from the law of reflection, what is wrong with this mirror setting?
ANSWER:

Graph "q_reflected versus q_incident" from air on mirror	y - Intercept, unit: degree	Slope, unit: N.A.	Regression Coefficient
Theoretical	0	1	1
Measured	0.412	0.999	1.00
%error	N. A.	0.1%	0.00%

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