Chapter Name: Reflection of Light
Activity Name: Concave in Reflection of Light
In this experiment, students will work with a rubber ball, cutting a portion of it to create a concave surface and observe the corresponding convex surface. They will learn about concave and convex mirrors and understand the concept of spherical mirrors.
- Rubber ball
- Knife (teacher’s assistance required)
Step by Step Procedure:
- Obtain a rubber ball and seek your teacher’s help to cut a portion of it with a knife as shown in the figure.
- Observe and identify the inner cut surface of the ball as the concave surface and the outer surface as the convex surface.
- Explore the properties of concave and convex mirrors based on their reflecting surfaces using the figures provided.
- Understand that any convex or concave mirror is a part of a sphere, leading to their classification as spherical mirrors.
- Observe the cut surfaces of the rubber ball and identify the concave and convex surfaces.
- Explore the figures of concave and convex mirrors to understand their reflective properties.
- Seek your teacher’s assistance while using the knife to cut the rubber ball to avoid accidents.
- Handle the rubber ball with care to prevent any injuries or damage.
Lesson Learnt from Experiment:
Through this experiment, students will learn about concave and convex surfaces and their relationship to concave and convex mirrors. They will understand that these mirrors are part of a sphere, making them spherical mirrors.