A Thin Layer of Oil Floats on a Water Puddle

question 32

Multiple Choice

A thin layer of oil floats on a water puddle. An observer sees a colored pattern. This happens because

• A) two surfaces each transmit some light and reflect some light.
• B) oil always does this, even if it is not on water.
• C) water transmits light and never reflects light.
• D) sunlight's frequency range shifts to infrared at the boundary of water and oil.

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Definitions:

Informal Economy

The part of an economy that is neither taxed nor monitored by any form of government, often characterized by cash transactions and unregulated employment.

Goods And Services

The products and activities offered by businesses to satisfy the needs and wants of consumers, where goods are tangible items and services are intangible experiences or tasks performed.

Steam Engine

A heat engine that performs mechanical work using steam as its working fluid, pivotal in the development of the Industrial Revolution.

Industrial Revolution

A period of major industrialization that took place during the late 18th and early 19th centuries, marked by significant technological advancements and societal changes.