Reference: Lab Experiments Journal vol-16, No.1, Page-24

Cauchy's constant / Dispersive power of prism

Experiment(s):

Determination of dispersive power of prism

Determination of refractive index of a prism

Determination of Cauchy’s constant

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
Center table: Height adjustable with provision for Prism and grating holder
Telescope with user changeable cross wire and eyepiece
                  

2 . Prisms

                    Double Extra Dense Flint
(DEDF), Extra Dense Flint
(EDF), Quartz and Calcite
Size: 15 mm to 25 mm
                  

3 . 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
                  

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