| Class 12 Physics – Suggested Investigatory Project Physics |
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| 1. To study various factors on which the internal resistance/EMF of a cell depends. |
| 2. To study the variations in current flowing in a circuit containing an LDR because of a variation in (a) the power of the incandescent lamp, used to ‘illuminate’ the LDR (keeping all the lamps at a fixed distance). (b) the distance of a incandescent lamp (of fixed power) used to ‘illuminate’ the LDR. |
| 3. To find the refractive indices of (a) water (b) oil (transparent) using a plane mirror, an equiconvex lens (made from a glass of known refractive index) and an adjustable object needle. |
| 4. To investigate the relation between the ratio of (i) output and input voltage and (ii) number of turns in the secondary coil and primary coil of a self-designed transformer. |
| 5. To investigate the dependence of the angle of deviation on the angle of incidence using a hollow prism filled one by one, with different transparent fluids. |
| 6. To estimate the charge induced on each one of the two identical Styrofoam (or pith) balls suspended in a vertical plane by making use of Coulomb’s law. |
| 7. To study the factor on which the self-inductance of a coil depends by observing the effect of this coil, when put in series with a resistor/(bulb) in a circuit fed up by an A.C. source of adjustable frequency. |
| 8. To study the earth’s magnetic field using a compass needle -bar magnet by plotting magnetic field lines and tangent galvanometer. |
FAQs – Class 12 Physics Investigatory Project
Q1. What is an investigatory project?
An investigatory project is a scientific research-based assignment that allows students to apply theoretical knowledge to real-world experiments. In Class 12 Physics, these projects involve practical investigations using physics concepts, data analysis, and presentation of results to demonstrate understanding and application of principles.
Q2. What are the topics of investigatory project Class 12 Physics?
Common investigatory topics in Class 12 Physics include:
- Study of LDR (Light Dependent Resistor)
- Resistance of a wire under different conditions
- Effect of temperature on resistance
- Study of motion using a simple pendulum
- Determining refractive index using a prism
- Capacitor charging and discharging
- Conservation of energy in collisions
- Efficiency of solar panels under varying conditions
Q3. Class 12 Physics Investigatory Topics List?
List of investigatory project topics suitable for CBSE Class 12 Physics:
- To study the behavior of a LDR under varying light intensity
- To measure the internal resistance of a cell
- Study of factors affecting the strength of an electromagnet
- To investigate Ohm’s Law and verify it experimentally
- To study the variation of current through a conductor by changing the length
- Analysis of Newton’s laws using a spring-mass system
- Determining the focal length of a convex lens by displacement method
- Study of resonance in sound waves using tuning forks