PHY 1402 LAB. REPORT
EXPERIMENT 11THE WAVELENGTH OF LIGHT; THE DIFFRACTION GRATING
NAME:
.
. DATE: .
SECTION: .
.
.
***
1. EXPERIMENTAL PURPOSE:
State the purpose of the experiment.( 5 points )
2. EXPERIMENTAL PROCEDURES AND APPARATUS:
Briefly outline the apparatus used and the general procedures adopted. (5 points )
99
3. RESULTS AND ANALYSIS
Grating Spacing (lines/mm)
.
Grating Constant (mm/line)
. (10 points)
(35 points)
TABLE 1:
n
Central
Vernier
reading
Minimum deviation (D)

Left
Right
Calculations of Minimum Deviation and  ( show your work) (25 points)
100
4. CONCLUSION: (5 points)
QUESTIONS (15 points)
101