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Interfaces and Thin Films

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Multiple Choice

What is the primary difference between an interface and a thin film?

  1. An interface involves two distinct materials, while a thin film is a single material.
  2. An interface is always formed between two solids, while a thin film can be formed on a solid, liquid, or gas.
  3. An interface is always atomically sharp, while a thin film can have a finite thickness.
  4. An interface is always formed by chemical bonding, while a thin film can be formed by physical deposition.
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