Scattered Light in the Atmosphere Is Often Partially Polarised

question 18

Multiple Choice

Scattered light in the atmosphere is often partially polarised.The best way to determine whether or not light from a particular direction in the sky shows polarisation is to:

• A)diffract the light through a single slit.
• B)squint while looking in that direction.
• C)rotate a piece of polaroid film about an axis parallel to the ray while looking through it in that sky direction.
• D)rotate a piece of polaroid film about an axis perpendicular to the ray while looking through it in that sky direction.
• E)reflect the rays from that direction on a shiny metal surface.

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Definitions:

Direct Labor-Hours

The total number of work hours spent by employees who are directly involved in the manufacturing process.

Traditional Costing

An accounting method that allocates overhead costs to products based on a predetermined rate, often labor or machine hours.

Activity-Based Costing

An accounting method that identifies and assigns costs to specific activities, thereby more accurately reflecting the costs of products or services.

Overhead Rate

The total of indirect costs of production compared to a base activity measure, like labor hours, used to assign costs to products.