Question

Which of the following is applicable to thin film?

• A. One dimensional nanostructure
• B. Zero dimensional nanostructure
• C. Two dimensional nanostructure
• D. Three dimensional nanostructure

Hint:

A thin film is confined in one direction only, so it is two dimensional.

Answer 1

The Correct Option is C

Step 1: Think about confinement
Thin film: thickness is very small, the plane is large.

Step 2: Count free directions
Two directions are large, so two dimensions are unconfined.

Step 3: Answer
2D nanostructure, option (C).

Final Answer:
Option (C). \[ \boxed{\text{Two dimensional}} \]