SCOPE OF LEARNING: 

• To determine the refractive index of the prism material using sodium light with the help of spectrometer

• To find the angle of  prism by rotating Telescopic Method.

• Dispersive Power of Prism

• To plot a graph between angle of incidence & corresponding angle of deviation to find the RI of prism

ABOUT SPECTROMETER: 

• A Basic measuring instrument for quantitative spectroscopy experiments, this  instrument is  mounted  on  a  stable  cast  iron  base  with  att ached collimator and a rotating telescope platform and graduated circle.

• A 2.4cm. Diameter achromatic optical system with a 10x Ramsden eyepiece

& cross line graticule.

• An 8 cm. Diameter prism/grating Table, fully adjustable with prism & grating holders and engraved ring pattern. Protected Circle15.0 cm with S.S. Scale.

• Vernier reading 1 minute.   

• Supplied in a wooden case with 2” Brass spirit level.

REQUIRED ACCESSORIES: 

Apparatus Supply:

• Spectrometer

• EDF Prism 32x32 

• Grating 15000 LPI

• Spirit Level 2’’

• Working Manual

Accessories (Light Source): 

• Sodium Vapour Lamp Assembly

• Sodium Vapour Lamp 35 Watts

• Sodium Vapour Lamp Box

• Sodium Vapour lamp Transformer 35 Watts