Pasco SE-9361 DIFFRACTION GRATING User Manual download pdf

IMPORTANT: To avoid scratching or soiling the surfaces of the

gratings, hold the slide only by its edges.

Instruction Sheet

for the PASCO

Model SE-9361

DIFFRACTION GRATING

(Set of Four)

Introduction

The PASCO Diffraction Gratings (set of four) have line spacings of 80, 100,

300, and 600 lines/mm. They are excellent for quantitatively studying the

relation between line spacing, angle of diffraction, and wavelength. Each grating

is covered with glass on both sides.

Suggested Uses

1. Look at various light sources through the gratings and examine the spectra.

Which colors of light are diffracted to the greatest angles? How does the

shape and orientation of the light source effect the pattern?

2. Using a line-filament light source, compare the diffraction patterns pro-

duced by the gratings. How does the angle of diffraction vary with the line

spacing of the grating?

3. Examine the spectra of various spectral light sources. Show your students

how an element can be "fingerprinted", allowing scientists to analyze the

composition of unknown materials, and even to determine the composition

of stars.

100 Lines/mm

80 Lines/mm

300 Lines/mm

600 Lines/mm

10101 Foothills Blvd. • P. O. Box 619011 • Roseville, CA 95661-9011 USA

Phone (916)786-3800 • FAX (916)786-890 • TWX 910-383-2040

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