| Consider the following statements about Nano Technology |
| 1. Nanotechnology is the science of designing and building on the atomic or molecular level. |
| 2. The nano scale is one billionth of a meter~ 80,000 times smaller than the width of a human hair. |
| 3. Nanotechnology is already revolutionizing medicine, science, pharmaceuticals, robotics, electronics, and manufacturing and computer technology. Which of the above statements is/are correct? |
A) 1 and 2
B) Only 3
C) 2 and 3
D) All of the above
Correct Answer: D
Solution :
[d] Nanotechnology is the understanding and control of matter at dimensions between approximately 1 and 100 nanometers (nm), where unique phenomena enable novel applications not feasible when working with bulk materials or even with single atoms or molecules. A nanometer is one-billionth of a meter. A sheet of paper is about 100,000 nanometers thick; a single gold atom is about a third of a nanometer in diameter. Researchers seeking to understand the fundamentals of properties at the nanoscale call their work nanoscience; those focused on effective use of the properties call their work nanoengineering. Encompassing nanoscale science, engineering, and technology, nanotechnology involves imaging, measuring, modeling, and manipulating matter at the nanoscale.
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