AIR WEDGE

Consisting of two optically plain glass plates of different thickness but having same length & width, resting on a black wooden piece. If they are separate by a piece of paper an air wedge will be formed. If monochromatic light i show non the plates a series of straight line fringes will be seen.

SPECIFICATION 

MOTION         A microscope with x-y-z axes movement

BODY                 Iron die cast body silver painted,

MICROSCOPE A standard microscope unit with 30x magnification and rotatable cross line eye piece. Focusing of microscope is through Rack and Pinion.

MAGNIFICATION 30x magnification and rotatable cross line eye piece

MOVEMENT         Longitudinal movement of 26 mm is done by rotating the drum provided which reads up to 0.001cm. Horizontal measurement scale with                                 fine and coarse movement screw I.E loosen the screw and push pull by hand for course motion.

                                AIR WEDGE

GLASS PLATE         Adjustable plane glass plate is provided to be inclined at 45 deg  with respect to the vertical plane(a screw provided for rotating it.)

CONDENSER         Condenser fixed in metal aluminum die cast IN L SHAPE ASSEMBLY for condensing the White light or Sodium Light

Sodium source With Sodium lamp 35 Watt With Transformer and Box