If an X-Ray with a Wavelength of 185 Pm Is $\theta$

question 42

Multiple Choice

If an X-ray with a wavelength of 185 pm is diffracted at an angle 2 $\theta$ =16.9, according to the Bragg equation (n $\lambda$ =2 d sin $\theta$ ) , what is the distance between layers of the crystal that give rise to this diffraction? Assume n= 1 in this problem.

• A)610.9 pm
• B)305.5 pm
• C)629.4 pm
• D)1260 pm
• E)198.1 pm

Distinguish extrinsic from intrinsic eye muscles and their roles in eye movement and focusing.

Recognize muscles involved in facial expressions and their specific actions.

Identify the muscles that control movements of the pharynx, hyoid bone, and larynx and their roles in swallowing and speech.

Understand the functional roles of suprahyoid and infrahyoid muscles.

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