Question

Identify a nanomaterial having all three dimensions less than 100 nm?

• A. Fibers
• B. Thin films
• C. Quantum dots
• D. Nanotubes

Hint:

Quantum dots are zero-dimensional nanomaterials, with all dimensions in the nanoscale.

Answer 1

The Correct Option is C

Step 1: Count nanoscale dimensions
Film: 1. Fibre: 2. Nanotube: 2. Quantum dot: 3.

Step 2: Choose
Only quantum dots have three, so the answer is option (C).

Final Answer:
Quantum dots are nanoscale in all three dimensions, option (C). \[ \boxed{\text{Quantum dots}} \]