Welcome to Alpha Genius Integrated school — where science meets curiosity!
In this video, our expert physics faculty demonstrates the Total Internal Reflection (TIR) lab experiment in detail. This session helps students understand how light behaves at the boundary of two media and how total internal reflection forms the basis of optical fibers, prisms, mirages, and many modern technologies.
What You’ll Learn in This Experiment:
Definition of Total Internal Reflection (TIR)
Conditions for Total Internal Reflection (Angle of Incidence - Critical Angle)
Critical Angle Calculation for glass and water
Experimental Setup using a semi-circular glass block/prism
Observation and Measurement of Refraction & Reflection angles
Real-life applications of Total Internal Reflection (optical fibers, periscopes, diamond sparkle, mirage effect)
Step-by-step procedure and precautions for accurate results
Song: Journey To The Stars
Composer: Savfk
Website: / savfkmusic
License: Free To Use YouTube license youtube-free
Music powered by BreakingCopyright: https://breakingcopyright.com
Experimental Procedure:
Place the semi-circular glass block on the paper and trace its boundary.
Direct a narrow ray from the ray box onto the flat surface of the block.
Vary the angle of incidence gradually and observe the refracted ray.
Note the angle when the refracted ray grazes the surface — this is the Critical Angle.
Increase the angle further — observe Total Internal Reflection (the ray reflects completely inside the block).
Record observations and tabulate the data.
Learning Outcomes:
✅ Understand the concept of Critical Angle & Total Internal Reflection
✅ Identify when light reflects entirely within a medium
✅ Relate theory with real-world optical technologies
✅ Enhance experimental and observation skills
🌈 Applications of Total Internal Reflection:
Optical Fiber Communication
Endoscopy
Prisms in binoculars & periscopes
Sparkle in Diamonds
Mirage formation in deserts and roads
🏫 About Alpha Genius Integrated Wschool:
At Alpha Genius Integrated Wschool, we believe in concept-based learning through real experiments. Our labs encourage curiosity, creativity, and deep understanding of scientific principles.
🎓 Join us to explore more hands-on science experiments, concept videos, and integrated learning methods.
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