**"Light Around Us – Discover, Observe, Reflect!
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# Physics Portfolio
**Name:** [Your Name]
**Class:** X
**Section:** [Your Section]
**Roll No.:** [Your Roll Number]
**Date:** 28/04/2025
**Topic:** Light Around Us – Discover, Observe, Reflect!
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## Objectives
- To connect the concepts of reflection and refraction of light with daily life through exploration,
observation, and documentation.
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## Task 1: Light in My Daily Life (Photo Journal)
**Photo:** (Attach a photo of your reflection in a mirror)
**What is happening?** Reflection
**Explanation:**
When light rays hit the smooth surface of the mirror, they bounce back, creating a clear image. This
is called reflection. The angle at which the light hits the mirror equals the angle at which it reflects,
allowing us to see ourselves.
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Photo: (Attach a photo of a pair of spectacles)
What is happening? Refraction
Explanation:
Spectacles use curved lenses to bend (refract) light rays as they enter the eyes. This bending
helps focus the light correctly on the retina, allowing people with vision problems to see
clearly. The refraction through the lenses compensates for the eye’s inability to focus light
properly on its own.
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Photo: (Attach a photo of your reflection in the back of a shiny metal spoon)
What is happening? Reflection
Explanation:
When an object is placed at the back of a shiny metal spoon, you see a small, inverted image
of the object. This happens because the curved surface of the spoon acts as a concave mirror,
reflecting light rays and converging them to form an upside-down image. This is a real-life
example of curved mirror reflection in daily life.
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Task 2: DIY Light Experiment
Experiment: Refraction in Water (Pencil in a Glass)
Aim:
To observe the refraction of light when it passes from air to water.
Materials Used:
A transparent glass
Clean water
A pencil or straight straw
Steps:
1. Fill the transparent glass about three-quarters full with water.
2. Place the pencil (or straw) vertically into the glass so that part of it is in the water and
part is outside.
3. Look at the pencil from the side of the glass, at eye level.
Observation:
The pencil appears to be bent or broken at the point where it enters the water. The part of the
pencil inside the water seems to be shifted sideways compared to the part above water.
Conclusion:
This effect is called refraction. Light travels at different speeds in air and water. When light
passes from air (a less dense medium) into water (a denser medium), it bends, causing the
pencil to look displaced or 'broken.' This demonstrates how refraction changes the direction
of light and alters the appearance of objects.
Photo or Sketch:
(Attach a photo of your experiment setup, or draw a neat sketch showing the glass, water, and
pencil with the apparent bending.)
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Task 3: Light in Professions (Mini Research)
Profession: Ophthalmologist
What they do:
An ophthalmologist is a medical doctor who specializes in the diagnosis, treatment, and care
of eye diseases and vision problems. They perform eye examinations, prescribe glasses or
contact lenses, and conduct surgeries to help patients maintain healthy eyesight.
How they use light in their work:
Ophthalmologists use various instruments that rely on the principles of light, such as
ophthalmoscopes and slit lamps. These tools direct light into the eye, allowing the doctor to
observe the inner structures like the cornea, lens, and retina. By understanding how light
reflects and refracts inside the eye, ophthalmologists can detect conditions such as cataracts,
glaucoma, and retinal disorders. Light is essential in their work for accurate diagnosis and
effective treatment of eye problems.
## Portfolio Presentation Guidelines
- Compile your work in a **scrapbook-style folder** or **spiral file**.
- Use **coloured pens**, **headings**, **borders**, and **creative touches**.
- Include your **name, class, and roll number** on the first page.
- Ensure **neatness and originality** throughout your project.
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## Rubrics
| Sr. No. | Description | Total Marks |
|---------|----------------------|-------------|
| 1. | Content |5 |
| 2. | Creativity |3 |
| 3. | Overall Presentation | 2 |
| | **Total** | **10** |
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**Tip:**
Add your own photos, decorate with borders, and use coloured headings for a creative touch. Good
luck!
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**If you want this in a Word or PDF format, let me know!**
Citations:
[1] https://ppl-ai-file-upload.s3.amazonaws.com/web/direct-files/attachments/
69006272/0a17b8eb-390a-442a-8c5c-f846573f65ba/physics-portfolio-gr-10.pdf
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