If an X-Ray Beam of Wavelength 1

question 3

Multiple Choice

If an X-ray beam of wavelength 1.4 × 10^-10 m makes an angle of 30° with a set of planes in a crystal causing first order constructive interference, what is the plane spacing?

• A)2.8 × 10^-10 m
• B)0.7 × 10^-10 m
• C)3.2 × 10^-10 m
• D)1.6 × 10^-10 m
• E)1.4 × 10^-10 m

---

Definitions:

Supplier Selection

The process of evaluating and choosing among potential suppliers based on criteria such as price, quality, reliability, and service.

Payment

The transfer of funds from one party to another in exchange for goods or services.

Declared Obsolete

The designation of a product, service, or technology as outdated or no longer in use, often replaced by newer alternatives.

Obsolete Materials

Items or materials that are no longer used or needed due to changes in technology, market demand, or product design.