How Light reflects in Reflection of Light – Class 7 Science Experiment

Chapter Name: Reflection of Light

Activity Name: How Light reflects in Reflection of Light

Activity Description:

How Light reflects in Reflection of Light - Class 7 Science Experiment

In this experiment, the reflection of light is explored using two mirror strips and a sheet of paper. The setup involves placing the paper on the ground so that one part is in sunlight and the other part in the shadow.

A mirror strip with a slit is held facing the sun to direct a ray of light onto the paper. Another mirror strip is positioned in the path of this light ray, causing the ray to be reflected.

Required Items:

  1. Blank sheet of paper
  2. Two mirror strips

Step by Step Procedure:

  1. Place the blank sheet of paper on the ground, ensuring that one portion is in direct sunlight, and the other is in the shadow.
  2. Hold one mirror strip with the slit facing the sun, allowing a ray of light to pass through the slit and fall onto the paper.
  3. Take the second mirror strip and position it in the path of the light ray that is coming from the first mirror strip.
  4. Observe the reflection of the light ray on the paper.

Experiment Observations:

  • The ray of light falling on the paper from the first mirror strip is observed.
  • The reflected ray of light from the second mirror strip is observed.

Precautions:

  1. Handle the mirror strips carefully to avoid breakage or injury from sharp edges.
  2. Do not look directly into the sun or the reflected sunlight to protect your eyes from damage.

Lesson Learnt from Experiment:

This experiment illustrates the concept of reflection of light. When light falls on a reflective surface like a mirror, it bounces back and is called the reflected ray. The incident ray is the incoming light, and the angle of incidence (the angle between the incident ray and the normal) is equal to the angle of reflection (the angle between the reflected ray and the normal).

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