A basic instrument for
performing spectroscopy experiments, designed to give best possible results,
mounted on stable cast iron base protracted scale 150 mm is divided a precision
machine, Vernier reading 1 min, telescope is fitted with 25 mm dia and 178 mm
focal length achromatic objective. 10xramsden eye piece and cross line
graticule collimeter has an adjustable precision still of 6 mm long jaw of non
rusting metal 8 cm dia prism/grating table is adjustable and has engraved ring
pattern.
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A
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Brass scale
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B
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S.S. Scale
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