Question

Identify the dimensional nature of nanoparticles by the following.

• A. one dimensional
• B. two dimensional
• C. four dimensional
• D. zero dimensional

Hint:

Nanoparticles are small in all three dimensions, so they are called zero dimensional.

Answer 1

The Correct Option is D

Step 1: Count the free dimensions.
A material that has nano size in all of x, y and z has no dimension along which electrons can move freely.

Step 2: Assign the class.
0D: nanoparticles, quantum dots. 1D: nanowires, nanorods. 2D: thin films, graphene sheets.

Final Answer:
Option (D). \[ \boxed{\text{zero dimensional}} \]