The Wave Length of Sodium Light And Thickness of Mica Sheet With The Help of A Fresnel’s Bi-prism - Order Code 55783

SPECIFICATION 

1. To determine the wave length of sodium light with the help of Fresnel’s Bi-prism.
2. To determine the thickness of mica sheet with the help of Fresnel’s Bi-Prism.

1. BI-PRISM ASSEMBLY : Comprising of the following :
   • Optical Bench : Two 150 cm long steel rods 3/4” dia. forming a bench with end supports having levelling  screws. One of the two steel rods is graduated in cm and mm. It has four riders, two with transverse motion. 
   • Bi-prism Holder : It has fine radial motion operated by fine pitch screw.
   • Lens Holder : Spring action type having well ground stainless steel jaws.
   • Micrometer Eye Piece: A rams den 10X eye piece carried on a slide which moves along a micrometer screw. The movement is read on a 30-0-30 mm steel scale and directly on micrometer head to .001 cm. No backlash.
   • Optical Slit : Optically true, precision ground stainless steel jaws. The jaws open uniformally all along through the milled head.
2. Fresnel’s Bi-Prism : Optically worked made from Crown Glass, 50 X 40 mm size.
3. Double Convex Lens : 50mm diameter and F.L.10cm
4. Reading Lens : 40/50 mm diameter with handle.
5. Sodium Light Source : Sodium light source complete with sodium lamp 35 watt with vacuum jacket, Transformer & Wooden Box having four holes with slide covers one each on every side at different heights.
6. Lamp house on heavy duty : For white light square stand with lamp
7. Retort stand with clamp : For mica size 2 x 4cm. Retort Stand Size 4 x 6" Rode size 18"
8. Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.

For Product Catalog click below
Download PDF