Topic Details (Notes format)

Units and Dimensions

Subject: General Science

Book: NCERT Science Class 11

Physical quantities are measured using units and dimensions.
- **Types of Units**:
- Fundamental (meter, kilogram).
- Derived (velocity, force).
- **Dimensional Analysis**:
- Used to check the correctness of equations.

**Possible Exam Questions:**
1. What is dimensional analysis? Explain with an example.
2. Differentiate between fundamental and derived units.
3. How is dimensional consistency used in physics?
4. Why do we need standard units of measurement?
5. How can we derive the formula for force using dimensions?

Practice Questions

Which planet is known as the "Red Planet"?

View Question

Which part of the brain is responsible for balance and coordination?

View Question

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

View Question

What type of macromolecule is an enzyme?

View Question

Which part of the cell contains the genetic material?

View Question

What is the main purpose of stomata in plants?

View Question

Which type of radiation has the shortest wavelength?

View Question

What is the chemical formula of water?

View Question

What is the unit of electrical resistance?

View Question

Which vitamin is essential for calcium absorption?

View Question