Hydrogen spectrum & Rydberg constant

a) Spectrometer

Scale: 6" diameter (Brass)
Base: Cast iron with levelling 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

b) Diffraction grating

Grating constant: 15000 Lines/inch
Window size: 40 mm x 30 mm

c) Discharge tube power supply

High voltage power supply
variable from 0-5 KV
Rated Input: 220 V/50 Hz or 110 V/60 Hz
Suitable for other discharge tubes
Discharge tube: Hydrogen filled (Qty: 2 Nos)
Stand: Height adjustable to accommodate all Kamaljeeth make discharge tubes