Two Planes of Atoms in a Crystal Are Separated by 3.25

question 45

Multiple Choice

Two planes of atoms in a crystal are separated by 3.25 × 10^-10 m. Light of what wavelength would show constructive interference at an angle of 17.5 degrees relative to the crystal surface?

• A) 3.9 × 10^-10 m
• B) 4.9 × 10^-9 m
• C) 9.75 × 10^-10 m
• D) 1.46 × 10^-10 m
• E) 1.95 × 10^-10 m

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Definitions:

Language Acquisition

The process by which humans learn to perceive, recognize, and produce language, typically occurring in early childhood.

Echoing

The repetition or mimicking of words or sounds, often used as a learning tool or as a symptom of certain disorders.

Expanding

The act or process of increasing in size, volume, quantity, or scope.

Infant Language Development

The process by which babies and young children acquire the ability to understand and produce language.