Image through vehicle mirror in Reflection of Light – Class 7 Science Experiment

Chapter Name: Reflection of Light

Activity Name: Image through vehicle mirror in Reflection of Light

Activity Description:

This experiment aims to compare the images formed by a plane mirror and a rearview mirror in a vehicle. By observing the reflections in both mirrors, we will explore the differences in the size and characteristics of the images formed.

Required Items:

1. Plane mirror
2. Vehicle with a rearview mirror

Step by Step Procedure:

1. Obtain a plane mirror.
2. Find a vehicle with a rearview mirror.
3. Position yourself in front of the plane mirror and observe your image.
4. Now, sit in the vehicle and observe your image in the rearview mirror.
5. Compare the images seen in both mirrors.

Experiment Observations:

• The image seen in the plane mirror appears to be of the same size as the actual object.
• The image seen in the rearview mirror of the vehicle appears smaller compared to the actual object and the image seen in the plane mirror.

Precautions:

1. Handle the mirrors with care to avoid any damage or scratches.
2. Ensure that the mirrors are clean and free from any dirt or smudges before conducting the experiment.
3. Avoid looking directly into bright sunlight or headlights while performing observations in the rearview mirror to protect your eyes.

Lesson Learnt from Experiment:

Through this experiment, we learn that the image formed in a plane mirror is of the same size as the object, while the image formed in a rearview mirror appears smaller.

The difference lies in the curvature of the rearview mirror, which is convex, whereas the plane mirror has a flat surface. The convex shape of the rearview mirror allows a wider field of view, which enables the driver to see a larger area behind the vehicle despite the smaller apparent size of the objects in the reflection.