Reference: Lab Experiments Journal vol-13, No.1, Page-49
Newton's rings with digital readout
Model: NR-2020
Experiment(s):
Determination of wavelength of sodium vapour lamp
Determination of focal length of convex lens
Determination of refractive index of liquid
Specifications
1. Microscope
Newton’s rings microscope Reflector: 45° turning glass plate Metal assembly with knob screw Fixed glass plates and lens assembly Base material: Acrylic Moving components: Brass Reading: Digital output
2. Digital readout unit
Range: 100 mm Resolution: 0.01 mm Display: LCD Rated Input: 220 V/50 Hz or 110 V/60 Hz
3. Sodium vapour lamp set
Lamp: Philips / Thorne 35 W Lamp house: Single lamp type with fixed slit openings Transformer: 35 W, Instant ON type Rated Input: 220 V/50 Hz or 110 V/60 Hz