Fundamentals of Nanoscience – 4BPHE3C Model Question

Department of Physics - Dr.Zahir Husain College, Ilyangudi.
Fundamentals of Nanoscience – 4BPHE3C

Time: 3 Hours                                                                                 Max Marks: 75

   Part – A                     (10 x 2 = 20)
Answer All the Questions

  1. Define Nanotechnology
  2. How surface to volume ratio is affected by the size of nanoparticles.
  3. Define CNT’s.
  4. Give any two applications of CNT’s.
5.    Define the top down approach.
6.    Write the advantage of CVD method.    
7.    List out advantages of Scanning tunneling microscopy.
8.    State the fundamental principle of transmission electron microscopy.
9.   Give the advantage of blue ray disk over ordinary compact disk.
10.  List any two applications of nanoparticles.
   Part – B                     (5 x 5 = 25)
Answer All the Questions

11.  Write note on nanomaterials.
(OR)

       What are nanowires? List out their properties.
  1. Describe the difference between SWCNT and MWCNT.
(OR)
Describe the plasma arc discharge synthesis technique for production of CNT.

13. Explain the lithography method for nanomaterial synthesis.
     (OR)
            Write note on self assembly method.
     
  1.  Describe the instrumentation of scanning probe microscopy.
(OR)
            Explain the working of AFM.
       15. Compare various types of optical memories.
                                                                                 (OR)
           
            Briefly describe nanomaterial applications in biomedical field.

   Part – C                     (3 x 10 = 30)
Answer any three Questions

  1. Describe various methods of nanomaterial synthesis.


  1. Describe the types of carbon nano tubes.


  1. Describe the sol-gel method for nanomaterial synthesis.


  1. Explain the principle and working of STM.


  1. Write an essay on nanolayer applications.