X Rays Are Emitted When the Electrons Hit the Screen $\times$

question 61

Multiple Choice

X rays are emitted when the electrons hit the screen in a cathode ray tube (CRT) ,i.e.,an old TV set.If the shortest wavelength X ray emitted is 3.7 $\times$ 10^-2 nm,then what is the voltage that the electrons are accelerated through in the TV set?

• A)2.1 \(\times\) 10^-23 V
• B)34 kV
• C)27 V
• D)34 V
• E)27 kV

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Definitions:

Lower-of-Cost-or-Market

An accounting principle requiring that inventory be recorded at the lesser of its historical cost or current market value.

Replacement Cost

The current cost of replacing an asset with a new one of similar kind and quality at present market prices.

Unit Cost

The cost incurred to produce, acquire, or distribute one unit of a product or service.

Inventoriable Costs

Costs that are included in the value of inventory and recognized as cost of goods sold when the inventory is sold.