Description :
Tenders for Supply And Installation Of Laboratory Equipment Experimental Setup For Fyimp Ug Practical Classes At The Department Of Physics, Gauhati University - Laboratory Equipments/experiment Set Ups, Experiment Name: To Verify The Law Of Malus For Plane Polarised Lighttechnical Specifcations:i. Light Source: - Led: 532 Nm Or 635 Nm ( 2 Nm Stability), 1 5 Mw Adjustable Output. - Unpolarized (extinction Ratio >500:1). - Collimated Beam (divergence 0.5 Mrad); Qty-1ii. Polarizers- Glan-thompson Or Polymer Film. - Extinction Ratio 10 :1 @ Operating Wavelength.- Mounted In 50 Mm Rotation Holders.; Qty-2iii. Rotation Stage- Motorized Analyzer Rotation (0.05 Resolution). - Accuracy: 0.1 . - Range: 0 360 (continuous).; Qty-1iv. Photodetector- Silicon Photodiode (400 1100 Nm). - Linearity: R 0.999 (0.1 W 5 Mw).- Digital Readout: 0.1 W Resolution.; Qty-1v. Optical Bench-- Anodized Rail ( 60 Cm) With Kinematic Mounts. - Vibration-damping Feet.; Qty-1, Experiment Name: To Determine Thespecific Rotation Of Sugar Solution Using Polarimetertechnical Requirementsa.core Instrumenti. Light Source- - Sodium D-line (589.3 Nm) Or Tunable Led ( 2 Nm Stability). - Output Stability: 0.2% Drift/hour.ii. Polarizer/analyzer- Glan-thompson Prisms Or High-grade Polymer Film. - Extinction Ratio 10,000:1 At 589 Nm.iii. Rotation Stage- Motorized With 0.001 Resolution.- Accuracy: 0.005 .- Range: -90 To +90 .iv. Sample Cell-- Borosilicate Glass Tubes With Precision Ground Ends. - Path Lengths: 0.5 Dm, 1.0 Dm, 2.0 Dm ( 0.01 Dm Tolerance). - Temperature-controlled Jacket (5 50 C 0.1 C).v. Detector- Photomultiplier Tube (pmt) Or Low-noise Photodiode. - Linearity: R 0.999 Over 0.1 W 5 Mw Rangevi. Enclosure- Light-tight With Vibration Damping. - Internal Black Anodized Surfaces.b.measurement Specificationsi. Specific Rotation: Range: -180 To +180 Resolution: 0.001 Accuracy: 0.01 Ii. Concentration-range: 0.01 0.5 G/ml (sucrose In Water) Detection Limit: 0.001 G/mliii. Temperature Control-stability: 0.1 C At 20 C (standard Condition), Experiment Name: To Determine The Wavelength And Velocity Of Ultrasonic Waves In A Liquid (kerosene Oil, Xylene, Etc.) By Studying The Diffraction Through Ultrasonic Gratinga.core Componentsi. Ultrasonic Generator- - Frequency Range: 1 10 Mhz ( 0.1% Stability). - Adjustable Output: 0 50 W. - Digital Display (resolution: 0.01 Mhz).ii. Transducer- Piezoelectric (pzt) Crystal, Resonant At 2 5 Mhz. - Liquid-coupled Design For Efficient Energy Transferiii. Liquid Cell- Optical Glass (low Thermal Expansion). - Dimensions: 100 50 50 Mm (l W H). - Sealed With Quartz Windows.iv. Light Source- He-ne Laser (632.8 Nm, 2 Mw) Or Sodium Lamp (589.3 Nm). - Beam Collimation: 0.5 Mrad Divergence.v. Optical System- Adjustable Slit (10 500 M). - Collimating Lens (f = 150 Mm, 50 Mm). - Precision Rotation Stage For Detector (0.01 Resolution).vi. Detection System- Photodiode/pmt Detector With Linear Response (400 800 Nm). - Traveling Microscope (0.01 Mm Resolution) Or Ccd Camera ( 5 Mp).b.measurement Specificationsi.wavelength ( )range: 0.1 2 Mm, Resolution: 0.001 Mm, Accuracy: 1%ii. Velocity (v)range: 800 2000 M/s (liquids) Resolution: 1 M/s Accuracy: 2%iii. Diffraction Angles- Measurement Range: 30 Resolution: 0.01 , Experiment Name: To Verify The Stefans Law Of Radiation And To Determine Stefan S Constanta.core Componentsi.black Body Radiator- Cavity-type Design (emissivity 0.99). - Material: Nickel-plated Copper.- Operating Range: 50 C 600 C. - Aperture Diameter: 10 Mm 0.1 Mm.ii. Heating System- Pid-controlled Furnace (0 600 C). - Stability: 0.5 C At 300 C. - Power: 500 W (ac 230v).iii. Temperature Sensor- Type K Thermocouple Or Pt100 Rtd. - Accuracy: 0.5 C At 500 C (nist-traceable).iv. Radiation Detector- Thermopile Sensor (spectral Range: 0.3 20 M). - Responsivity: 10 V/w.- Active Area: 10 10 Mm .v Optical Path. - Water-cooled Collimating Tube With Baffles.- Adjustable Aperture To Define Solid Angleb.measurement Specificationsi. Temperature Range100 C 500 C (reso
