Two Flat Glass Plates Are in Contact Along One End

question 33

Multiple Choice

Two flat glass plates are in contact along one end and are separated by a sheet of paper 3.0 *10 ^{- 6} m thick at the other end. The top plate is illuminated by a monochromatic light source of wavelength 490 nm. How many dark parallel bands will be evident across the top plate? (1 nm = 10 ^{- 9} m) Note that a dark band occurs where the plates contact.

• A) 13
• B) 7
• C) 9
• D) 17

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Definitions:

Diseconomies of Scale

A situation in which a business's costs per unit increase as the scale of operation expands, opposite to economies of scale.

Average Total Cost

The total cost of production divided by the quantity of output produced, representing the cost per unit of output.

Long Run

A period during which all inputs, including capital and labor, can be adjusted by firms. It is characterized by the flexibility of adjusting to conditions without any fixed constraints.

Average Costs

It's the cost associated with producing each unit, found by dividing the entire production expenses by the number of units produced.