TEST PAPER 15 : CHAPTER 1 : INTRODUCTION TO NANOTECHNOLOGY : 25 MARKS

There are 15 questions in all and time limit is 45 minutes.

SECTION - A : CHOOSE APPROPRIATE ALTERNATIVE : [1 mark each, Total marks 4]

1. 1 meter = ______ nm.
   
   
   
   1. 10⁹
   2. 10^(-9)
   3. 10¹⁰
   4. 10^(-10)
      
   
   
2. The diameter of hydrogen atom is ______ nm.
   
   
   
   1. 10
   2. 1
   3. 0.1
   4. 0.01
      
   
   
3. ______ are the extensions of bucky balls.
   
   
   
   1. Geodesic domes
   2. Hexagons
   3. Carbon nanotubes
   4. AFM and STM
      
   
   
4. The size of a quantum dot is ______ m.
   
   
   
   1. 5
   2. 5 x 10^(-9)
   3. 5 x 10^(-10)
   4. 5 x 10^(-11)
      
   
   

   SECTION - B : ANSWER IN SHORT : [1 mark each, Total marks 4]
   

5. What is atomic engineering ?
6. What is the full form of MEMS ?
7. Who photographed nanotubes for the first time ?
8. What is the use of nanocrystals ?
   
   

   SECTION - C : ANSWER IN BRIEF : [2 marks each, Total marks 8]
   

9. What possibilities will nanotechnology offer ?
10. Why is carbon a fundamental element in nanotechnology ?
11. Explain the influence of nanotechnology on environment.
12. Explain : Nanotechnology plays by different rules.
    
    

    SECTION - D : ANSWER THE FOLLOWING : [3 marks each, Total marks 9]
    

13. Write a note on nanotechnology and health care.
14. Explain the concept of nanotubes with diagram.
15. Mention any six benefits of nanotechnology to mankind.