Choosing the right investigatory project is one of the most exciting parts of CBSE Class 12 Physics. A good topic helps students understand concepts better and score full marks in their practical exams. That is why having a helpful cbse class 12 physics investigatory project topics list makes the selection easy. These projects help students explore real-life applications of physics in technology, machines, renewable energy, optics, electricity, magnetism, electronics, communication systems, and much more.

In this blog, you will get 120 creative and simple project ideas specially designed for Class 12 students. All topics are easy to research, interesting to make, and perfect for school submissions. This cbse class 12 physics investigatory project topics list will help you save time and choose a topic that matches your interest and future goals. Let’s begin!

What is a CBSE Class 12 Physics Investigatory Project?

A CBSE Class 12 Physics investigatory project is a detailed practical research activity performed by students under guidance from teachers. In this project, students choose a physics concept, perform experiments, record observations, analyze results, and write a conclusion in a proper format. The goal is to help students learn how real scientific investigation works.

These projects develop skills like:

• Observation
• Problem-solving
• Data collection
• Measurement and precision
• Scientific report writing

The project becomes part of the internal assessment, and good performance can increase overall marks in board exams. Projects can be based on electricity, light, sound, magnetism, energy, electronics, and environment-based experiments. A well-presented investigatory project with charts, graphs, pictures, and clear explanations helps students score maximum marks. This is why choosing a strong topic from the cbse class 12 physics investigatory project topics list is very important.

Also read: Project Topics for Economics Undergraduate Students

120 CBSE Class 12 Physics Investigatory Project Topics List

1. Study of Ohm’s Law using different resistors.
2. Efficiency of a solar cell under sunlight.
3. Electricity generation using wind turbine.
4. Behavior of light through convex lens.
5. Magnetic field strength around a solenoid.
6. Thermistor characteristics study.
7. Resistivity of different metals.
8. Newton’s cooling law investigation.
9. Capacitor charging and discharging experiment.
10. Reflection of light through plane mirrors.
11. Efficiency of different insulation materials.
12. Study of friction on different surfaces.
13. Morse code transmission using LED.
14. Sound absorption by materials.
15. Electromagnetic induction with copper coils.
16. Effect of temperature on resistance of wire.
17. Wireless power transfer simple model.
18. Working of smart street lighting system.
19. Study of DC motor operation.
20. Speed control of fan using dimmer.
21. Power factor improvement using capacitors.
22. Garbage monitoring system using sensors.
23. Optical fiber communication basics.
24. AC and DC current comparison.
25. Water level alarm using transistors.
26. Light dispersion using prism.
27. Robotic car using Bluetooth control.
28. Solar tracking system model.
29. Study of LDR sensitivity to light.
30. Investigation of series and parallel circuits.
31. Electromagnet strength and coil turns relation.
32. Smart parking system using IR sensors.
33. Light intensity measurement with smartphone sensors.
34. Electric bell working model.
35. Energy conversion using piezoelectric crystals.
36. Data transmission using laser light.
37. Air pressure effect on sound speed.
38. Solar cooker thermal efficiency study.
39. Relay switch operation in circuits.
40. Heartbeat monitoring device (basic model).
41. Study of transistor as a switch.
42. Wheatstone bridge performance test.
43. Study of Hooke’s Law with springs.
44. Study of energy loss in transformers.
45. Rain alarm circuit using sensors.
46. Burglar alarm using LDR.
47. Efficiency of rechargeable batteries.
48. Charge storage in capacitors.
49. Effect of coil material on electromagnetic induction.
50. Hydroelectric power generation model.
51. Study of torque in rotating bodies.
52. Robot arm using servo motors.
53. Blind stick using ultrasonic sensors.
54. Lightning detector model.
55. Study of collisions using balls.
56. RFID-based smart card system.
57. Electric power transmission loss study.
58. Solar panel tilt angle optimization.
59. Measuring gravitational acceleration using pendulum.
60. Sound controlled lighting system.
61. Study of simple pendulum damping.
62. Water turbine model for electricity.
63. Study of angle of deviation in prisms.
64. Radar system model using sensors.
65. Traffic signal light automation.
66. Study of projectile motion.
67. Automatic water tap using IR sensor.
68. Temperature measurement using thermocouple.
69. Study of LED vs CFL power consumption.
70. Photovoltaic efficiency under shade.
71. Microwave radiation effect study.
72. Efficient home automation model.
73. Magnetic levitation simple model.
74. Study of current vs voltage in bulbs.
75. IR remote control working analysis.
76. Biogas energy conversion model.
77. Smart helmet accident alert system.
78. Electric glove for stroke patients.
79. Electric lift basic mechanism study.
80. Fire alarm system using sensors.
81. Optics-based burglar alert.
82. Pressure sensor for measuring force.
83. Study of Doppler effect using sound.
84. Energy meter working demonstration.
85. Water purification using solar energy.
86. Study of AC frequency measurement.
87. Drone physics and propeller lift.
88. Measuring refractive index of liquids.
89. Study of resonance in sound tubes.
90. Camera obscura optical experiment.
91. Laser security alarm system.
92. Study of centripetal force using rotation.
93. Earthquake alarm system basic model.
94. Measuring buoyant force on objects.
95. Study of escape velocity concept.
96. Gear system mechanical advantage study.
97. Electric braking system concept.
98. Flood detection alarm project.
99. Study of polarisation of light.
100. Remote weather monitoring system.
101. Solar battery charger circuit.
102. Study of battery charging rate.
103. Measuring humidity using sensors.
104. Energy saving through automation.
105. Pressure and volume relationship study.
106. Light scattering using dust particles.
107. Automatic fan speed controller.
108. Study of air resistance using parachutes.
109. Study of thermal conductivity of metals.
110. Laser light diffraction experiment.
111. Wi-Fi controlled home appliances.
112. Heat transfer in cooking pans.
113. Study of solar water heater.
114. Pendulum clock working principle.
115. Charging phones with solar energy.
116. Smart waste segregation system.
117. Anti-sleep alarm for drivers.
118. Study of Newton’s third law with rockets.
119. Wireless doorbell using RF module.
120. Study of echo and sound reflection.

Also read: Womens History Month Class Projects for Students

How to Choose the Best Physics Project Topic

Choosing the right topic from the cbse class 12 physics investigatory project topics list should be based on your interest, available materials, and the time required. Select a topic that you understand well and can explain confidently. Look for topics that have an easy experimental setup so you can perform tests multiple times for better results.

Discuss your idea with your teacher and read theory from NCERT for strong background knowledge. Make sure your project uses proper diagrams, tables, graphs, circuit diagrams (if electronics), and a clear final conclusion. A strong presentation with neat arrangement and working demonstration can help you score maximum marks.

How to Score 90%+ in Physics Board Exams

Physics becomes easy when you understand concepts instead of memorizing everything. Focus on:

• NCERT textbook questions
• Numerical practice
• Derivations and formulas
• Diagrams and labeled charts

Try solving sample papers and previous years’ papers regularly. Attend all lab sessions carefully because practical marks also improve total score. Use short notes for revision and study for at least 1–2 hours daily.

With discipline and a clear study plan, scoring above 90% in Physics is absolutely possible.

Conclusion

Physics investigatory projects are a smart way to learn science through experiments. The cbse class 12 physics investigatory project topics list shared in this blog contains simple and innovative ideas that can help every student select the best project for their school submission. Choose a topic you enjoy, perform your experiment carefully, record neat observations, and explain results confidently.

A well-chosen project can improve marks, build practical skills, and make learning Physics fun. Start working early and give your best effort. Your hard work will definitely help you achieve excellent grades in practical exams and board results.