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Q. |
Which of the following is an example of bottom-up approach for the preparation of nanomaterials? |
A. | etching |
B. | dip pen nano-lithography |
C. | lithography |
D. | erosion |
Answer» B. dip pen nano-lithography | |
Explanation: dip pen nanolithography is an example of bottom-down approach for the preparation of nanomaterials. all the other options are the example of top-down approach. |
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