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All In One Science

10. Light: Reflection and Refraction

1. Chemical Reactions and Equations
2. Acids, Base and Salts
3. Metals and Non-Metals
4. Carbon and its Compounds
5. Periodic Classification of Elements
6. Life Processes (a) Nutrition
6. Life Processes (b) Respiration
6. Life Processes (c) Transportation
6. Life Processes (d) Excretion
7. Control and Coordination
8. How do Organisms Reproduce?
9. Heredity and Evolution
10. Light: Reflection and Refraction
11. Human Eye and The Colourful World
12. Electricity
13. Magnetic Effects of Electric Current
14. Source of Energy
15. Our Environment
16. Management of Natural Resources
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Q. 135.0( 2 Votes )

When we focus sun

Class 10th All In One Science 10. Light: Reflection and Refraction

Answer :

The matchstick will burn because convex lens is the converging lens. The rays of sun coming from large distance ( infinity) will be converged at the focus of the convex lens, due to which too much energy will be produced and this energy will burn the matchstick kept at focus of the convex lens.

Figure below shows the ray diagram for the same.

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