Physics Practicals Class 10

Verification of Laws of Refraction by Glass Slab

  • Teach science experiments in a gamified way
  • Boost conceptual clarity and knowledge retention
  • Aligned with National Education Policy 2020
  • Helpful in getting NAAC accreditation
  • CBSE, ICSE, and state boards aligned curricula
  • Engaging simulations with easy-to-teach instructions

About Simulation

  • Engage in a simulated experiment verifying the laws of refraction using a glass slab.
  • Explore the phenomenon of refraction as light passes through a glass slab and undergoes a change in direction.
  • Utilize interactive tools to observe and measure the angles of incidence and refraction.
  • Confirm Snell's Law by analyzing the relationship between the angles of incidence and refraction and the refractive indices of the materials involved.
  • Experiment with different angles of incidence and observe how they affect the angle of refraction.
  • Analyze the experimental data to validate the laws of refraction and gain insights into the behavior of light when passing through different mediums.

Physics Practical Class

  • Experience a realistic laboratory environment through immersive virtual reality simulations.
  • Encounter real-life scenarios that demonstrate the practical applications of the laws of refraction in various optical systems.

Simulation Details

Duration – 30 Minutes
Easily Accessible
Languages – Odia & English
Platforms – Android & Windows


Refraction Through Glass Slab

Physics Practical Class

When a ray of light passes from air to glass through a rectangular glass slab, it bends towards the normal to the surface of the air-glass boundary (AD). The phenomenon of change in the direction of a ray of light when it enters from one medium to the other is known as refraction.

The refractive index of Glass slab

The refractive index n of glass with respect to air is defined as

Physics Practical Class

Using Snell’s law of refraction of light and from the figure, the refractive index (n) of glass can also be expressed as:

Physics Practical Class

For air-glass boundary AD, the angle of incidence is angle XON (or ∠i), and the angle of refraction is angle MOO′ (or ∠r). At the glass-air boundary BC, the angle of incidence is the angle OO′N′ (or ∠r′), and the angle of refraction (or the angle of emergence, ∠e) is angle M′O′Y.

The refractive index of glass can either be calculated at the air-glass boundary AD or at the glass-air boundary BC.

At air-glass boundary AD,

Physics Practical Class

At glass-air boundary BC,

Physics Practical Class

Requirements for this Science Experiment

  • Glass Slab
  • Drawing board
  • White paper
  • Drawing pins
  • Scale
  • Protractor
  • Pencil

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