e NIT /APDC 01/ 2019-20 GR 02

EQUIPMENT OF PHYSICS LABORATORY

Study of Electron spin resonance-determine magnetic field as a function of the resonance frequency.

Study of Zeeman effect: with external magnetic field; Hyperfine splitting.

To verify the law of Malus for plane polarized light. Model: DETECH -ML01

To analyze elliptically polarized light by using a Babinet’s compensator. Model: DETECH-BC01, Complete with Babinet Compensator, Sodium Lamp, lamp house, transformer, Polariser, Analyser, Optical Bench with riders.

To determine the wavelength and velocity of ultrasonic waves in a liquid (Kerosene Oil, Xylene, etc.) by studying the diffraction through ultrasonic grating. Model: DETECH-USW01. Objective: 1. To study the diffraction of light due to propagation of ultrasonic wave in a liquid 2. To determine the speed of sound in various liquids at room temperature 3. To determine the compressibility of the given liquids. Apparatus: 1. Radio frequency oscillator fitted with a frequency meter 2. Quartz crystal slab fitted with two leads 3. Spectrometer 4. Glass cell with sample liquid (kerosene/Toluene/Turpentine oil etc) 5. Sodium lamp 6. Spirit level.

To study Polarization and double slit interference in microwaves.

To verify the Stefan’s law of radiation and to determine Stefan’s constant. Model: DETECH –SBBR Measurement of Stefans constant using black body radiation. Complete with Stefans conatant apparatus, very high sensitive light spot galvanometer with sensitivity control, high quality thermocouple.3 lt Cu Boiler, rubber tube, electrical heater with temp. control.

To determine the Boltzmann constant using V-I characteristics of PN junction diode. Model: DETECH-BOLTZ The apparatus consists: (a) A digital millivoltmeter (0 – 9.99 V) to measure the voltage across the diode. (b) A highly stabilized power supply whose voltage can be varied in steps of 1 mV using a ten – turn potentiometer.

To measure the Magnetic susceptibility of Solids. Apparatus for the Measurement of Susceptibility of Solids by Gouys Method. The apparatus consists of: a) Scientific Balance, (with weight box) b) Al. Samples and Glass Tube for powder samples c) Gouy’s Balance Stand d) Electromagnet, DETECH e) Constant Current Power Supply, DETECH f) Digital Gaussmeter, DETECH Complete in all respect . Make : DETECH

To measure the Dielectric Constant of a dielectric Materials with frequency.Model: DETECH-DC To calculate Dielectric Constant of Solids. The instrument consists of a High Frequency R.F Oscillator 4MHz with outer Gang Condenser, optimum tuning is indicated on meter. The change in meter reading after placing Dielectric Material between parallel plates can be detected and difference can be noted. Works on 220V AV 50Hz. Dielectric Constant Experiment consists of the following: 1. Dielectric Constant Apparatus. 2. Variable Gang Capacitor 3. Test Capacitor ( Solid Gang Condenser) Three types of Bakalite sheets for Dielectric materials Two set of leads

To determine the complex dielectric constant and plasma frequency of metal using Surface Plasmon resonance (SPR)

To draw the BH curve of Fe using Solenoid & determine energy loss from Hysteresis. Model: DETECH - BHCT To draw BH curve of a Fe using solenoid and determine energy loss from hysteresis B-H CURVE TRACER Setup consists of Main unit having variable a.c. supply and control for magnetizing coil, specially designed power supply for pickup probe, I.C. holder having magnetizing coil and pickup probe. Samples of different materials( 4 nos.). Additional Accessory Required : C.R.O. (Not supplied ) OBJECTIVE 1. Study of the hysteresis curves of transformer stampings, ferrites and other magnetic materials of different shapes and determination of their energy losses. 2. Study of the hysteresis curve as a function of the magnetic field. 3. Determination of saturation, magnetization, reminence and coercivity of magnetic materials

To measure the resistivity of semiconductor (Ge) with temperature by four-probe method (room temperature to 1500 C ) and to determine its band gap. Model : DETECH – BG-S-D To study the temperature dependence of reverse saturation current in a junction diode & hence to determine the band gap of semiconductor. Complete with Temp. controlled oven, Digital Voltmeter, Digital Micro Ammeter, DC Regulated Power Supply, Semiconductor, Thermometer, manual.

To determine the Hall coefficient of a semiconductor sample. Complete with the following : Hall Probe (Ge Crystal-n type) Hall Probe (Ge Crystal-p type) Hall Probe Stand (wooden) Hall Effect Set Up DETECH Electromagnet. DETECH Constant Current Power Supply. DETECH Ballistic Galvanometer Lamp & Scale Standard Solenoid Phol`s Commutator Rheostat 25 ohms / 5 A - Heavy duty

Vacuum Desiccator.

DELTA TECHNOLOGIES

DETECH

Batra Trading Company

DIGIT-ALL

M/s. Scientific India

LOKNATH INSTRUMENT

Batra Trading Company

DETECH

RAMKRISHNA LAB SUPPLIER

LOKNATH INSTRUMENT