Physics Practicals Class 10

# Verification of Laws of Refraction by Glass Slab

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• 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.

• 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

Description

Refraction Through Glass Slab

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

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

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 glass-air boundary BC,

### Requirements for this Science Experiment

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

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