PHYSICS LAB MANUALS

SINGLE SLIT DIFFRACTION

TABLES FOR RECORDING THE DATA

Table 1: Observation table for intensity vs displacement (on screen) .

S. No

Intensity, \(I\)
(mA)

Displacement,\(x\)
(mm)


Table 2: Observation Table for different positions of relative maxima on screen

S. No

Order,
n

Relative maxima position,\(x\)
(mm)


Table 3: Observation Table for determining wavelength from different orders of fringe width

S. No

Order,
n

Fringe width,
\(y = (x_{n} - x_{n-1})\)
(mm)

Wavelength,
\(\lambda = \frac{yd}{nD}\)
(nm)

Plot Intensity versus displacement (on screen) graph for the experiment to observe the variation.
Determine the wavelength of light from different orders of fringe width by taking an average.