Topic Details (Notes format)

Physical World and Measurement

Subject: General Science

Book: NCERT Science Class 11

Physics explains natural phenomena using fundamental principles.
- **Branches of Physics**:
- Classical (Mechanics, Thermodynamics).
- Modern (Quantum Mechanics, Relativity).
- **Need for Measurement**:
- SI Units for standardization.
- Fundamental and Derived Quantities.

**Possible Exam Questions:**
1. What are the fundamental principles of physics?
2. Why is measurement important in physics?
3. Differentiate between fundamental and derived quantities.
4. What is the importance of SI units?
5. How does classical physics differ from modern physics?

Practice Questions

What type of electromagnetic radiation has the longest wavelength?

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What is the unit of electric current?

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

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Which is the smallest bone in the human body?

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Which organ stores and releases glucose in the human body?

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Which planet has the strongest gravitational force?

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Which is the largest planet in the Solar System?

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What is the term for water changing from liquid to gas?

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Which disease is caused by a virus?

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Which organ is responsible for filtering blood in the human body?

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