A Certain Crystal Has an Interatomic Spacing of 0

question 98

Multiple Choice

A certain crystal has an interatomic spacing of 0.442 nm. A beam of neutrons moving with a speed of 1640 m/s is diffracted from the crystal. What is the de Broglie wavelength of the neutron?

• A) 0.121 nm
• B) 0 nm
• C) 0.241 nm
• D) 0.484 nm
• E) 0.682 nm

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Definitions:

Tegmentum

A part of the brainstem that is involved in movement and arousal, containing the reticular formation and various nuclei.

Tectum

Roof of the midbrain.

Superior Colliculi

Paired structures in the midbrain that are involved in visual and auditory reflexes and coordinate head and eye movements.

Cerebrum

The cerebrum is the largest part of the brain, responsible for higher brain functions such as thought, action, reasoning, emotion, and memory.