The index of refraction ranges from approximately 1.45 - 2 for visible materials and 1.38 - 4 for IR materials. In many cases, index of refraction and density share a positive correlation, meaning IR materials can be heavier than visible materials; however, a higher index of refraction also implies diffraction-limited performance can be achieved with fewer lens elements – reducing overall.

Mitochondria and Chloroplast are two organelles which contains their own genetic material. 2.If the organization of the cell is destroyed due to some physical or chemical influence, the cell would become a permanent tissue. 3.

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The most abundant material in the plant cell wall is ADVERTISEMENT Text Solution A Lignin B Hemicellulose C Starch D Cellulose Answer The correct Answer is D Answer Step by step video & text solution for The most abundant material in the plant cell wall is by Biology experts to help you in doubts & scoring excellent marks in Class 11 exams.

Such functions include: (1) providing the living cell with mechanical protection and a chemically buffered environment, (2) providing a porous medium for the circulation and distribution of water, minerals, and other small nutrient molecules, (3) providing rigid building blocks from which stable structures of higher order, such as leaves and ste.

If the momentum of the lowest energy state in the conduction band and the highest energy state of the valence band of a material have the same value, then the material has a direct bandgap. If they are not the same, then the material has an indirect band gap and the electronic transition must undergo momentum transfer to satisfy conservation.

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