Reference: Lab Experiments Journal vol-13, No.1, Page-49

Newton's rings with digital readout

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
                  

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