DETERMINATION OF THE WAVE LENGTH OF SODIUM LIGHT BY NEWTON RING METHOD

EXP-97	DETERMINATION OF THE WAVE LENGTH OF SODIUM LIGHT BY NEWTON RING METHOD
1570	Six Position Vemier Microscope (X & Z Motion) Microscope: Mounted on a travelling carriage fitted with 10x Ramsden eye piece, cross-line graticule, Achromatic object 75mm working distance, focussing by rack & pinion. Graduated in half millimeters on inlaid strip of nickel silver, vernier attached, Microscope traverse, 16.5 cm. Heavy cast iron, top nicely machined, travelling carriage slides on the top, which can be clamped in any position. Fine motion screw for finer adjustment. Complete with case. Special design measure object in X as well as in Z direction.
PHY226	SODIUM VAPOUR LAMP SETUP
PHY226/1	Sodium Vapour Lamp (35watt)
PHY226/2	Sodium Lamp Box with slits & electrical fitting (35 watt)
PHY226/3	Sodium Lamp Transformer (35watt)
1572	Newton's Ring Apparatus Interference fringes are clearly seen when the apparatus is viewed in sunlight, fluorescent light or monochromatic light. The glass plate and convex lens are held in a heavy aluminum frame having three adjusting screws.
1571	Newton's Ring Apparatus Comprising a small wooden frame of size 5”x3”x3” with a matt blackened inside and provided with a glass plate 4” x 3” x 1/8 0 mm mounted at an angle of 45 to reflect the light downwards on to a Plano-convex lens of 50mm diameter having 100 cm focal length
PHY235	SPHEROMETER, Brass
PHY235/1	Single Disc 1/100mm

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