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NEWTON’s RINGS WITH DIGITAL READOUT

Experiment(s):

1. Determination of wavelength of sodium vapour lamp

2. Determination of focal length of convex lens

3. Determination of refractive index of liquid



Specifications:

a) 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

b) Digital readout
Range: 100 mm
Resolution: 0.01 mm
Display: LCD
Rated Input: 220 V/50 Hz
or 110 V/60 Hz

c) Sodium vapour lamp set
(Optional)
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 H

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