GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- III (New) EXAMINATION — WINTER 2019
Subject Code: 3133904 Date: 28/11/2019
Subject Name: Characterization Of Nanomaterials-I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
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Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Marks | |
|---|---|
| Q.1 (a) Define X ray diffractions. | 03 |
| (b) Explain Lau Conditions & Lau Method in short. | 04 |
| (c) Explain powder method in brief. | 07 |
| Q.2 (a) What is Data Handling and Processing. | 03 |
| (b) Write working principle of X-Ray photoelectron Spectroscopy. | 04 |
| (c) Write short notes on Scanning Electron Microscopy (SEM). | 07 |
| OR | |
| (c) Write Working and principle of Energy Dispersive X-Ray Analysis (EDAX). | 07 |
| Q.3 (a) Define Auger Electron. | 03 |
| (b) Write the short notes on image mode. | 04 |
| (c) Define specimen preparation pre thinning and final thinning steps. | 07 |
| OR | |
| Q.3 (a) Define modes of operations | 03 |
| (b) Write Advantages, disadvantages of Microscopy. | 04 |
| (c) Explain brief application of microscopy. | 07 |
| Q.4 (a) What is the importance of characterization. | 03 |
| (b) Types of Ellipsometry define in short: | 04 |
| (c) Write working, principle of Transmission Electron Microscopy. | 07 |
| OR | |
| Q.4 (a) Define secondary electrons and primary electrons. | 03 |
| (b) Define the parameter 'in- microscopy Image Formation and Resolution, Depth of Field | 04 |
| (c) Explain working, principle and construction of Atomic Force Microscopy | 07 |
| Q.5 (a) What is x-ray define it. | 03 |
| (b) Write short notes on Backscattered Electrons. | 04 |
| (c) Write working, principle and construction of Ellipsometry. | 07 |
| OR | |
| Q.5 (a) Explain in short Transducers. | 03 |
| (b) Explain braggs law with ray diagram. | 04 |
| (c) Draw ray diagram of light microscopy explain working principle. | 07 |
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