Physics Practicals Class 10

# Laws of Verification of Reflection in Plane Mirror

• 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

• Simulations provide a visual representation of the laws of reflection, allowing users to observe the behaviour of light rays interacting with plane mirrors.
• Users can manipulate the incident angle of light rays and observe how they reflect off the mirror surface.
• Simulations often include tools for measuring angles, facilitating the verification of the law of reflection by comparing the incident and reflected angles.
• Users can receive instant feedback on their experiments, reinforcing their understanding of the laws of reflection.

• Simulations can simulate real-life scenarios, such as the use of plane mirrors in optical devices like periscopes and rear-view mirrors, providing context for understanding the laws of reflection in practical situations.

### Simulation Details

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

Description

Reflection
Change in the direction of a light ray when it strikes a smooth surface or a plane mirror is called reflection of light. Any polished or shiny surface, such as a stainless-steel plate or a shining steel spoon, can act as a mirror and change the direction of light. The surface of the water also reflects light, and you see the reflection of trees and buildings in water bodies.

Types of Reflection
When reflection occurs at a plane or smooth surface such as a plane mirror, all the rays incident parallel to each other remain parallel to each other even after reflection. This is called regular reflection.

When a beam of light falls on a rough or unpolished surface like paper, cardboard, etc, the incident light rays get reflected in different directions. The reflected rays are not parallel to each other, and it is called irregular or diffused reflection.

Laws of reflection

1. The angle of incidence is equal to the angle of reflection.
2. The incident ray, the normal to the mirror at the point of incidence, and the reflected ray all lie in the same plane.
3. These laws of reflection are deduced from experiments. It can be verified using a plane mirror of good quality with a good reflecting surface. A thin mirror strip is used to avoid the formation of multiple images due to multiple reflections.

### Requirements for this Science Experiment

• Plane mirror
• Protractor
• Wooden board
• Pencil
• White board
• Pin
• Mirror holder

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