Experimental Skills – JEE Mains Physics

• by Zenith LMS
• Updated April 2025

1. Vernier Calipers

• Vernier calipers are used to measure the internal and external diameters, and the depth of a vessel with high precision.

2. Screw Gauge

• The screw gauge is used to measure the thickness or diameter of a thin sheet or wire accurately.

3. Simple Pendulum

• The simple pendulum can be used to study the dissipation of energy by plotting a graph between the square of amplitude and time.

4. Metre Scale

• A metre scale can be used to determine the mass of a given object by the principle of moments.

5. Young's Modulus of Elasticity

• This experiment helps determine the Young's modulus of elasticity of a metallic wire.

6. Surface Tension of Water

• The surface tension of water can be determined by capillary rise, and the effect of detergents can be studied as well.

7. Coefficient of Viscosity

• The coefficient of viscosity of a given viscous liquid can be measured by determining the terminal velocity of a spherical body.

8. Speed of Sound in Air

• The speed of sound in air at room temperature can be determined using a resonance tube.

9. Specific Heat Capacity

• The specific heat capacity of a given solid and liquid can be measured by the method of mixtures.

10. Resistivity of a Wire

• The resistivity of a material of a given wire can be determined using a metre bridge.

11. Resistance of a Wire

• The resistance of a given wire can be calculated using Ohm's law.

12. Figure of Merit of a Galvanometer

• The resistance and figure of merit of a galvanometer can be determined using the half deflection method.

13. Focal Length of Mirrors and Lenses

• The focal length of (i) a convex mirror, (ii) a concave mirror, and (iii) a convex lens can be determined using the parallax method.

14. Angle of Deviation vs Angle of Incidence

• A plot of the angle of deviation vs angle of incidence for a triangular prism can be made to study its properties.

15. Refractive Index of Glass Slab

• The refractive index of a glass slab can be determined using a travelling microscope.

16. Characteristic Curves of a p-n Junction Diode

• The characteristic curves of a p-n junction diode can be plotted for forward and reverse bias.

17. Zener Diode and Breakdown Voltage

• The characteristic curves of a Zener diode can be studied, and the reverse breakdown voltage can be determined.

18. Identification of Components

• The identification of diode, LED, resistor, and capacitor from a mixed collection of such items can be done based on their characteristics.