Answers of Quiz 1741 (Light)


1. Light is a form of energy.
2. Vision (sight)
3. 400 - 700 nm
4. Infrared
5. Ultraviolet
6. Sun
7. Photosynthesis is a process used by plants to convert light energy into chemical energy.
8. 299,792,458 m/s in vacuum
9. Photons
10. (c) both
11. Optics
12. Rainbow is a meteorological phenomenon that is caused by reflection, refraction & dispersion of light in water droplets resulting in a spectrum of light appearing in the sky.
13. When light travelling in one medium strikes the boundary of another medium a part of it is sent back in the same medium, this is known as Reflection.
14. Refraction is the bending of light rays when passing through a surface between one transparent material & another.
15. The phenomenon of splitting white light into its colors is called Dispersion.
16. Transmission is the percentage of incident light that passes through a substance.
17. Virtual image
18. If the inner side of the surface is polished to reflect light it is called a Concave Mirror. It is also called a converging mirror.
19. If the outer side of the surface of the section is polished to reflect light it is called a Convex Mirror. It is also known as a diverging mirror.
20. Red, Green & Blue (RGB)
21. By mixing any two primary colors together, we get secondary colors.
22. Ibn ul Haitham
23. LASER = Light Amplification by Stimulated Emission of Radiation
24. Real, inverted & small

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