Question

Consider the following statements with respect to nanotechnology:
1. Substances that behave as insulators at bulk level can behave as semiconductors at the nano scale.
2. Nanomaterials can be considerably stronger than bulk materials.
3. Substances that are opaque at bulk level can become transparent at nano scales.

Which of the statements given above is/are correct?

• A. 1 only
• B. 2 and 3 only
• C. 2 only
• D. 1, 2 and 3

Answer 1

The correct option is D 1, 2 and 3

All statements are correct with respect to the Nanotechnology. Substances that behave as insulators at bulk level can behave as semiconductors or conductors at the nanoscale. Nanomaterials can be considerably stronger than bulk materials. Substances that are opaque at bulk level can become transparent at nanoscale.