Certain Planes of a Crystal of Halite Have a Spacing

question 14

Multiple Choice

Certain planes of a crystal of halite have a spacing of 0.399 nm.The crystal is irradiated by a beam of X-rays.First order constructive interference occurs when the beam makes an angle of 20° with the planes.What is the wavelength of the X-rays?

• A) 0.14 nm
• B) 0.17 nm
• C) 0.21 nm
• D) 0.24 nm
• E) 0.27 nm

---

Definitions:

Ineffective Communication

The failure to convey information or ideas effectively, resulting in misunderstandings or lack of clarity.

Organizational Members

Individuals who are part of an organization, including employees, managers, and stakeholders, and contribute to its mission and goals.

Grapevine

A casual communication system inside a company, frequently the source of rumor dissemination and non-official news.

Rumour

An unverified belief that is in general circulation.