Two Different Electron Beams Are Incident on Two Different Targets

question 51

Multiple Choice

Two different electron beams are incident on two different targets and both produce x rays.The cutoff wavelength for target 1 is shorter than the cutoff wavelength for target 2.We can conclude that:

• A)target 2 has a higher atomic number than target 1
• B)target 2 has a lower atomic number than target 1
• C)the electrons in beam 1 have greater kinetic energy than those in beam 2
• D)the electrons in beam 1 have less kinetic energy than those in beam 2
• E)target 1 is thicker than target 2

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Definitions:

Morphemes

The smallest grammatical units in a language that carry meaning, which can be a word or a part of a word like a prefix or suffix.

Phonemes

The smallest sound elements in a language that allow for the differentiation between words.

Semantics

The branch of linguistics and logic concerned with meaning, including the ways meaning is constructed and understood.

Cognition

The intellectual act of obtaining awareness and insight through the means of experience, contemplation, and sensory input.