• Welcome to GCE Goa

Physics Laboratory

1.    The laboratory is equipped with all the basic facilities required for an undergraduate Engineering programme. The Student capacity of the lab is 24 and has a carpet area of 130 sq.mt. The List of equipment and facilities are summarized below. It is also equipped with dark room for Experiments based on conventional light and laser source.


Name of the Equipment/Facility  Quantity  Name of the Equipment/Facility  Quantity 
Rheostat  6 He-Ne Laser to measure  wavelength of light and particle size  1
Voltmeter Flash mounting type  - 0-75 V , 0-30 V, 0-15 V  2 each  Ultrasonic Interferometer  3
Electric Kettle   5 Semiconductor energy Gap experimental Set up  7
Ammeter Flash mounting Type  0-10 mA, 0-25 mA, 0-50 mA                3, 1, 1  Photoelectric Effect and determination of Planck’s  Constant  4
Rectifier Experiment Set up  8 Hysterisis by Magnetometer Set up  3
Function Generator KFG-501  4 Hall effect kit, Hall probe  3
Zener diode Characteristics Apparatus with digital meter  6 Air wedge apparatus  4
Thermistor Characteristics apparatus with digital meter  2 Fermi Energy Experimental set up  5
P-N Junction diode Characteristics  apparatus with digital meter  2 Helmholtz  Resonator experimental set up  5
e/m apparatus with bar magnet and digital meter  8 Capacitor charging and discharging set up  5
 Planck’s constant apparatus with digital meter  5 Electrical vibrator  5
Cathode Ray Oscilloscope  2 Digital  Storage Oscilloscope 20  MHz  2
Newton’s Rings’ apparatus with sodium vapour lamp  4 Matching Oscillator for resonance  4
Numerical Aperture Experimental set up  3 Resonance Expt. Set up  4


The following Experiments are conducted under the current scheme of Instruction

Sr. No.  List of Experiments: Scheme 2019-20 
1 Newton’s Ring 
2 Air Wedge 
3 Hall Effect 
4 Velocity of Ultrasonic waves 
5 He/Ne/Diode Lasers – Determination of wavelength & particle size 
6 Energy Gap of a Semiconductor   
7 Planck’s Constant by Photocell 
8 B -H Curve  
9 Thermistor Characteristics 
10 Dispersive power of the material of a prism 
11 Determination of Optical Absorption Co-efficient of materials using lasers 
12 Helmholtz Resonator 
13 Determination of dielectric constant of a parallel plate capacitor 
14 Photodiode characteristics and power response 
15 Frequency of AC mains using Electric Vibrator  
16 Estimation of Fermi Energy of Copper 
17 Determine the acceptance angle and numerical aperture of an optical fiber 
18 Determination of magnetic field constant along the axis of current carrying coil 
19 Series and Parallel L-C-R circuit – Inductance, Bandwidth and Quality Factor