55782 Experimental Set-Up has been designed specifically to determine the Resolving Power of a Diffraction Grating. The set-up consists of Spectrometer, Mercury light source, Diffraction Grating, Rectangular Aperture of adjustable width, Reading lens etc.
The set-up is complete in all respect and requires no other apparatus. Practical experience on this set up carries great educative value for Science and Engineering Students.

OBJECT
To determine the Resolving Power of a Diffraction Grating.

FEATURES
The complete Experimental Set-up consists of the followings :
01 Spectrometer standard :
6" dia circle reading 30 seconds. The objectives used in telescope and collimator are achromatic and provided with rack and pinion focussing 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 rings & lines. The scales and verniers are of stainless steel and are machine divided. Clamping devices are also provided to lock telescope and collimator after adjustment; with prism clamping device and diffraction grating stand.
02 Mercury light source :
Complete with Mercury Vapour lamp 80W along with choke & wooden box with holes with slide covers one each on three sides.
03 Diffraction grating : Hilger & Watts Type, 15000 line per inch/6000 lines per cm.
04 (Slit) attachment for reading power of telescope.
05 Reading lens : 40/50 mm diameter with handle.
06 Spirit level : 60/80 mm length.
07 Weight : 13.6 Kg. (Approx.)
08 Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.