A Puddle of Water Has a Thin Film of Gasoline

question 32

Multiple Choice

A puddle of water has a thin film of gasoline floating on it.A beam of light is shining perpendicular on the film.If the wavelength of light incident on the film is 560 nm and the indices of refraction of gasoline and water are 1.40 and 1.33,respectively,what is the minimum thickness of the film to see a bright reflection?

• A) 100 nm
• B) 200 nm
• C) 300 nm
• D) 400 nm
• E) 500 nm

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Definitions:

Psychological Types

Categories or groups of individuals based on their psychological characteristics, often used in personality assessment.

Data Collection Techniques

Methods and tools used to gather information, facts, or data to analyze and make decisions, including surveys, interviews, observations, and experiments.

Observed Behavior

Actions or reactions of an individual that can be directly seen and recorded by others.

Interviews

Interviews are structured or semi-structured conversations where questions are asked to gather information, opinions, or experiences from one or more individuals.