Topic Details (Notes format)

Electromagnetic Waves

Subject: General Science

Book: NCERT Physics Class 12

Electromagnetic waves consist of oscillating electric and magnetic fields.
- **Maxwell’s Equations**:
- Describe electromagnetic wave propagation.
- **Electromagnetic Spectrum**:
- Radio waves to gamma rays.
- **Uses of EM Waves**:
- Applications in communication, medical imaging.

**Possible Exam Questions:**
1. Explain the properties of electromagnetic waves.
2. Derive the equation for the speed of EM waves in vacuum.
3. Discuss applications of microwaves and infrared waves.
4. What is the significance of Maxwell’s equations?
5. Compare X-rays and gamma rays in terms of energy and uses.

Practice Questions

Which metal is liquid at room temperature?

View Question

What is the term for an organism that can make its own food?

View Question

What is the unit of electric current?

View Question

What is the pH of pure water at 25°C?

View Question

What is the atomic number of hydrogen?

View Question

Which vitamin is essential for calcium absorption?

View Question

Which part of the cell contains the genetic material?

View Question

Which organelle is known as the "powerhouse of the cell"?

View Question

Which organelle is responsible for photosynthesis in plants?

View Question

What is the primary component of the Sun?

View Question