Two Mirrors Are Joined Together Along a Common Side, the Planes

question 41

Multiple Choice

Two mirrors are joined together along a common side, the planes of the mirrors separated by the angle $\theta$ . If the joined mirrors can be used as a retroreflector when a beam of light strikes both surfaces (one after the other) , what is the value of $\theta$ ?

• A) 90°
• B) 135°
• C) 45°
• D) 30°

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Definitions:

Diminishing Marginal Product

Diminishing marginal product is an economic principle stating that adding an additional factor of production results in smaller increases in output after a certain point.

Variable Cost

A cost that varies with the level of output or production activity.

Marginal Product

The marginal product is the additional output gained by employing one more unit of input, such as labor, in the production process.

Bouquets

Arrangements of flowers, often decorative and used as gifts or for special occasions.