Topic Details (Notes format)

Light – Reflection and Refraction

Subject: General Science

Book: NCERT Science Class 10

Light exhibits the properties of reflection and refraction.
- **Reflection**:
- The bouncing back of light when it strikes a surface.
- Laws of Reflection:
1. The angle of incidence = angle of reflection.
2. The incident ray, reflected ray, and normal lie on the same plane.
- **Refraction**:
- The bending of light when it passes from one medium to another.
- Example: A pencil appears bent in water.
- **Applications**:
- Mirrors in cars (reflection).
- Lenses in glasses and cameras (refraction).

**Possible Exam Questions:**
1. State the laws of reflection and explain their significance.
2. What is refraction? Why does a pencil appear bent in water?
3. How does a convex lens differ from a concave lens?
4. Explain the working of mirrors used in vehicles.
5. Solve numerical problems on the lens formula.

Practice Questions

What is the primary function of white blood cells?

View Question

Which type of bond is present in sodium chloride?

View Question

Which process describes the splitting of a nucleus into smaller nuclei?

View Question

Which acid is found in the human stomach?

View Question

Which gas is commonly used in balloons to make them float?

View Question

Which process converts glucose into energy in the human body?

View Question

What is the chemical formula for carbon dioxide?

View Question

Which organelle is responsible for photosynthesis in plants?

View Question

Which organ stores and releases glucose in the human body?

View Question

Which element is the most abundant in the Earth’s crust?

View Question