A Metallic Sheet Has a Large Number of Slits,5

question 31

Multiple Choice

A metallic sheet has a large number of slits,5.0 mm wide and 20 cm apart,and is used as a diffraction grating for microwaves.A wide parallel beam of microwaves is incident normally on the sheet.What is the smallest microwave frequency for which only the central maximum occurs? (c = 3.00 × 10⁸ m/s)

• A) 0.50 GHz
• B) 0.70 GHz
• C) 1.0 GHz
• D) 1.5 GHz
• E) 2.0 GHz

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Definitions:

Departmental Production Report

A document that summarizes the output, efficiency, and costs associated with a particular department within a company over a specified period.

Work in Process Inventory

Inventory that includes items that are currently being produced but are not yet complete.

Conversion Costs

Expenses related to transforming raw materials into finished goods, typically including labor and manufacturing overhead.

Normal Spoilage

The expected amount of waste or inefficiency in a production process, considered to be a normal cost of doing business.