Скачать или смотреть Angle of minimum deviation experiment for class 12 | Prism experiment |

Welcome to today’s physics practical!
In this video, we will perform the Angle of Minimum Deviation Experiment using a prism and spectrometer. This experiment helps us understand how light bends inside a prism and how to calculate the refractive index of the prism material.

🔍 What You Will Learn:

What is minimum deviation in a prism

How to adjust and set up the spectrometer

How to find the angle of prism (A)

How to determine the angle of minimum deviation (Dₘ)

How to calculate refractive index (μ) using the formula
μ = sin[(A + Dₘ)/2] / sin(A/2)

Precautions for accurate results


🧪 Experiment Setup Includes:

Prism

Spectrometer

Sodium vapour lamp / Light source


📚 Useful For:

✔ Class 12 Physics Practicals
✔ Board Practicals & Viva
✔ Lab Record Work
✔ Competitive Exams Basics

💬 Viva Questions Covered:

What is angle of deviation?

What is angle of minimum deviation?

Why is deviation minimum at a particular angle?

What factors affect the refractive index?


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