Consider the following statements for Nano-technology :
1. It is the technology of creating materials and devices atom-by-atom.
2. Physical properties change at the nanometer scale.
3. Chemical properties change at the nanometer scale.
Which of the above statements are correct?
1
1 and 2 only
2
1 and 3 only
3
2 and 3 only
4
1, 2 and 3
5
Question Not Attempted