PASCO SE-9357 User Manual

Instruction Sheet
for the PASCO
Model SE-9357

EDUCATIONAL DIFFRACTION GRATING

EDUCATIONAL DIFFRACTION GRATING

012-03440B

3/92

100

lines/mm

lines/mm

Introduction

The side by side diffraction gratings on this slide make
it easy to investigate diffraction patterns and the
relationship between line spacing and angle of diffrac­tion.

Suggested Uses of the SE-9357 Educational
Diffraction Grating:

➀ 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?

➁ Using a line-filament light source, compare the dif-

fraction patterns produced by the three gratings. By
looking through two gratings at once (centering
your eye on the division), you can directly compare
two patterns. How does the angle of diffraction
vary with the line spacing of the grating? Repeat

300

600

lines/mm

the observation with a color filter between the light
source and the grating.

➂ 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.

➧ IMPORTANT: To avoid scratching or soiling

the surfaces of the gratings, hold the slide only
by its edges.

➦ NOTE: The blaze wavelength of the gratings,

i.e., the wavelength at which they work most
efficiently, is 500 nm (5000

o

).

A

Limited Warranty

012-03440B

PASCO scientific warrants this product to be free from
defects in materials and workmanship for a period of
one year from the date of shipment to the customer.
PASCO will repair or replace, at its option, any part of
the product which is deemed to be defective in mate­rial or workmanship. This warranty does not cover
damage to the product caused by abuse or improper
use. Determination of whether a product failure is the

result of a manufacturing defect or improper use by the
customer shall be made solely by PASCO scientific.
Responsibility for the return of equipment for warranty
repair belongs to the customer. Equipment must be
properly packed to prevent damage and shipped
postage or freight prepaid. (Damage caused by
improper packing of the equipment for return shipment
will not be covered by the warranty.) Shipping costs
for returning the equipment, after repair, will be paid
by PASCO scientific.

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scientific