Experiment(s):
1. Determination of grating constant and resolving
power of grating
2. Measurement of wavelengths of mercury spectru
Specifications:
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) Mercury vapour lamp
Bulb: Philips/Osram
Power: 160 W
Transformer free operation
Enclosure: Wooden with slits
Rated Input: 220 V/50 Hz
or 110 V/60 Hz
