Reference: Lab Experiments Journal vol-11, No.1, Page-45 Lab Experiments Journal vol-15, No.4, Page-278
Resolving power of grating
Model: RPG-201
Experiment(s):
Determination of grating constant and resolving power of grating
Measurement of wavelengths of mercury spectrum
Specifications
1. Spectrometer
Scale: 7" diameter (Brass) Base: Cast iron with leveling screw All moving parts made of Brass for accuracy Collimator with adjustable slit Horizontal axis alignment for collimator: Yes Horizontal axis alignment for telescope: Yes Centre table: Height adjustable with provision for prism and grating holder Telescope with user changeable cross wire and eyepiece
2. Diffraction grating
Grating constant: 15000 Lines/inch Window size: 40 mm x 30 mm
3. Mercury vapour lamp
Bulb: Philips/Osram or equivalent Power: 160 W Transformer free operation Enclosure: Wooden with slits Rated Input: 220 V/50 Hz or 110 V/60 Hz