Malus Law Setup
(i) He-Ne Laser 2 mW or Tungsten Bulb 60/100Watt with power supply
(ii)Polarizer and Analyzer
(iii)Photo –detector
(iv)Milli-Voltmeter
(v) Optical bench 1meter scale with saddles
Osaw Photoelectric Effect Apparatus
(1) DC Power supply (12V /3A) for Light source (Halogen Tungsten Bulb)
(2) Digital voltmeter (20 Volts) and Digital Ammeter(3Ampere) to measure the voltage
and current of Tungsten Bulb
(3) Light Source [Halogen Tungsten Bulb (12V/36Watt)] with holder and stand
(4) Photo-cell with Housing and stand
(5) DC Power supply (±15V /500mA) for Photo-cell
(6) Digital voltmeter(20V) and Digital-Ammeter(Range: 1μA ,10μA ,100μA and 1000μA) to
measure the voltage and current of photocell.
(7) Optical Bench (Metallic) of 1 meter length
(8) Set of Five color filters (Red(635nm),Orange(570nm), Yellow(540nm),
Green(500nm) and Blue(460nm))
(9) Adequate number of Patch Cords
(10) Instructional Lab manual
Osaw Planck’s Constant using Black Body Radiation
(i) Power supply (15V /3A) for light source
(ii) Digital Voltmeter/ multimeter (3-1/2 digits)
(iii) Optical Bench (1.5 meter scale length)
(iv) Light Source Tungsten Bulb (12V/36Watt) with holder
(v) Convex lens (Focal length 10cm, Dia 50 mm) with holder
(vi) Grating 15000LPI with holder
(vii) Objective lense (dia 28.4mm, Focal length 178mm)
(viii) Photocell as a light sensor with angular arrangement .
(ix) Instructional lab manual
Osaw Angstrom’s Method of Thermal Conductivity Apparatus
(1) OSAW Angstrom’s AC Power Supply of 50Volts/10 Amperes that has inbuilt Function generator circuit which provides the square wave signal to the power supply with a time period of 50 milliseconds and time period of square wave is indicated by two LEDs(Red LED for ON time and Green LED for OFF time .
(2) AC Voltmeter(0-50V ) and an Ammeter (0-10A ) is provided on the front panel of the Power Supply.
(3) A Copper rod of 50cm in length and 2.5cm in diameter fitted inside a wooden box to protect from energy loss.
(4) Heater that is fitted on one end of the copper rod has:
(i) Heater Coil resistance = 10 Ω(Approx.)
(ii) Maximum Load Current =4.2 Amperes
(iii) Maximum Load Voltage =40 Volts
(iv) Heating Filament =160 Watts
(5) Thermometers 360⁰C (Set of Four)
(6) Connecting leads (7) Instructional lab manual
Osaw Stefan’s Constant by Black Body Radiation Setup
(i) Hot plate
(ii) Hemi-sphere chamber arrangement with silver disk
(iii) Stop watch
(iv) Galvanometer
(v) Resistance box 1- 500 ohm
(vi) Two Steamer
(vii) Four thermometer (1100C -2 nos. , 3600C -2 nos.)
(viii) Thermocouple tube
(ix) Rubber pipe
(x) Wire thermocouple and Instructional lab manual
Osaw Four Probe Setup
OSAW Four Probe Apparatus Setup consists of:
(1) Constant Current Generator having open circuit voltage of 18V, Current Range 0-20mA
(2) Oven Power supply
(3) Oven with regulator which is used to heat the crystal from Room temperature to about 200⁰C.
(4) Four Probe Arrangement: Four individually spring loaded probes coated with Zinc at the tips to ensure
good electrical contact with the sample crystal and are equally spaced.The whole arrangement is
mounted on a suitable stand and connection leads are provided for voltage and current measurements..
(5) A Sample of Ge/ Si crystal in the form of Chip/Slice
(6) Digital Voltmeter of range(0-200mV and 0-2000mV) with selector switch to measure the voltage across
the crystal
(7) Thermometer(250⁰C) to measure the oven Temperature.
(8) Instructional Lab Manual
The Zeeman Effect Setup
(1) Electromagnet (7.5KGauss) with Power Supply(30V/5A)
(2) Mercury tube with power supply
(3) optical bench of 1.5 meter scale
(4) Fabry-Perot etalon
(5) condenser lens in mount
(6) telescope
(7) CCTV camera with connecting cables
(8) 21 inch LED T.V
Capillary Rise Method
Osaw Setup for Velocity of Sound in Liquid
(i) Sodium Lamp as A Light source.
(ii) 0-3MHz Radio Frequency Generator
(ii) Spectrometer
(iv) CCD Camera as a Image detector
(v) LED TV for image view
Osaw P-E Hystersis Loop (ferroelectric crystal) Apparatus
(i) Sample Holder
(ii) Digital Temperature meter(0 -6000c)
(iii)H.T Supply variable from 0 to 5000V
(iv)Inbuilt Voltmeter
(v)Inbuilt heating arrangement
(vi)Inbuilt Fan
(vii) On board controls
(viii) Connecting Leads
(ix) Instructional Lab Manual
Solar Constant (Irradiance)
(1)Wooden Box with Aluminium Block Fixure and a dowel on the top
(2) Aluminium Block Fixed on the top of wooden box having dimensions:
(i) Area (13cm ×7.5cm =97.5 cm2)
(ii) Mass of Aluminium block (350 gms )
(iii) Specific Heat of Aluminium : 0.215 Calories /(gram 0C)
(3) Styrofoam to prevent heat dissipation of Aluminium block
(4) Thermometer (1100C) to measure the temperature of Aluminium block
(5) Stop Watch to note down the time during the experiment.
(6) Elevation Adjuster made up of steel
ABSORPTION SPECTRUM OF IODINE VAPOUR
Iodine wafers, Tungsten lamp, Eye glass
Osaw Newton’s Ring Setup
(i) A convex lens of 200mm Focal length
(ii) Plane Glass Plate
(iii) Optical arrangement for Newton’s rings
(iv) Sodium Lamp housed in a wooden Box
(v) Travelling Microscope
Fiber Optics Experimental Kit with Micro-Optical Bench
