SHORT QUESTIONS on Nanotechnology

1) What do you mean by NANO?2) Define NANO TECHNOLOGY?3) Define NANO SCIENCE?4) What is the difference between NANO SCIENCE & NANO TECHNOLOGY?5) When and where FEYNMAN delivered his lecture on nanotechnology and what is the name of his classical lecture?6) Give Moore’s I law & II law?7) Define top down and bottom up approach?8) Give any two salient points addressed by Feynman?9) Define nano structured material?10)Classify nanomaterials and give examples for them?

11)Classify nanocomposites?12)List any four day to day live commercial applications of nanotechnology?13)Write down any four challenges that are faced by researchers in nanotechnology?14)What do you mean by quantum dots & nanocrystals?15)List any four processes to produce nanopowders?16)What is the name of Pentium-IV processor launched by INTEL in 2004, based on 90nm technology?17)What is the diameter of a bucky ball? How many pentagons and hexagons are there in a bucky ball?18)What for MEMS stands for?19)What are the types of carbon nanotubes?20)What are the induced effects due to increase in surface area of nanoparticles?

21)Define carbon nanotube?22)Define bucky ball?23)Define nanocomposite? What are the types of nanocomposites?24)List methods for producing bucky balls?25)List methods for producing carbon nanotubes?26)List any two applications of bucky balls and carbon nanotubes?27)List any four material characterization techniques?28)Give any two excellent properties of carbon nanotubes?29)What do you mean by characterization in relation with materials?30)What is the difference between SEM & TEM?31)What is the difference between STM & AFM?

32)What do you mean by elastic scattering and inelastic scattering of electrons?33)What do you mean by primary, secondary, backscattered electrons in relation with SEM?34)Why C-60 molecules are called as bucky balls? Give reasons?35)Define lithography?36)Give examples for special nanomaterials? Why they named as special nanomaterials?37)What are the types of MEMS?38)What do you mean by thermal MEMS?39)Why develop nanotechnology?40) Why is nanotechnology an important tool for cancer research?41) Are there any safety or environmental issues with the nanotechnologies in use today?