Class 10 · CBSE
Class 10 Science questions
65 questions. Open one to try it and read its answer with a full explanation.
1. Chemical Reactions and Equations
Chapter page →2. Acids, Bases and Salts
Chapter page →3. Metals and Non-metals
Chapter page →4. Carbon and its Compounds
Chapter page →5. Life Processes
Chapter page →6. Control and Coordination
Chapter page →7. How do Organisms Reproduce?
Chapter page →8. Heredity
Chapter page →9. Light - Reflection and Refraction
Chapter page →- The mirror used as a rear-view mirror in vehicles is
- The focal length of a spherical mirror of radius of curvature 20 cm is
- The power of a lens of focal length +0.5 m is
- When light goes from air into glass, it
- A concave mirror forms a real, inverted image of the same size when the object is placed at
10. The Human Eye and the Colourful World
Chapter page →11. Electricity
Chapter page →- The SI unit of electric current is the
- Two resistors of 4 Ω each are joined in series. Their total resistance is
- A 3 V battery drives a current of 0.5 A through a resistor. Its resistance is
- Two resistors of 4 Ω each are joined in parallel. Their total resistance is
- The commercial unit of electrical energy, 1 kWh, equals