Diffraction Grating Slide

To determine velocity of ultrasonic waves in a liquid, complete apparatus consists of high frequency R.F. Oscillator 3-8 MHz, Crystal with tank, long tube Spectrometer with 7 "protracted circle, sodium lamp with wooden box and transformer

Grating Spectroscope

A diffraction grating spectroscope for viewing visible lines and absorption spectra. The spectrum is visible, superimposed on a scale, which gives the approximate wavelengths. The high-resolution diffraction grating replica used produces an extremely bright spectrum. The complete body of unbreakable molded plastic and can easily be held in the hand. The construction eliminates internal reflections to provide the sharpest, clearest spectrum possible.

3 In One Demonstration Diffraction (LO-1076)

For demonstrating the principle of the diffraction grating and the way in which its properties are dependent upon the number of lines per unit length. Comprises a card mount 90 x 40 mm approximately with three 16 x 9 mm apertures, each containing a diffraction grating replica. The gratings are of 100 lines/ mm. 300 lines/ mm and 600 lines/ mm, respectively, and are protected by cover glasses.

Spectroscope Kit

Students will get to see and appreciate the prismatic qualities of sunlight by using this 1 in diameter diffraction grating spectroscope.

LO-6008�  Spectroscope Kit

LO-6008�   Spectroscope Kit   Set/15

Read by two opposite verniers reading to one minute of the arc. The objectives used in telescope and collimators are achromatic and provided with rack and pinion focusing arrangement. Telescope arm and prism table are provided with fine and coarse adjustment. The prism table is provided with three leveling screws
and is engraved with concentric ring and lines.
The scale and verniers are of stainless steel and are machine divided. Cover plate protects the scale from dust and carries two transparent windows for verniers. The instrument is finished
in pleasing and smooth duco colour and other necessary parts are chromium plated.
With prism clamping device and diffraction grating stand in polished wooden case:
a) 5 dia circle reading one minute ,
b) 6 dia circle reading one minute,
c) 6 dia circle reading 30 seconds,
d) 7 dia circle reading 30 seconds,
e) 9 die circle reading 30 seconds,
f) 10 dia circle reading 30 seconds