$\mathrm { X }$ -Rays of Wavelength $0.20 \mathrm {~nm}$ Are Scattered by a Free Electron

question 24

Multiple Choice

$\mathrm { X }$ -rays of wavelength $0.20 \mathrm {~nm}$ are scattered by a free electron. The change in the wavelength of the x-rays is observed to be $2.0 \times 10 ^ { - 12 } \mathrm {~m}$ at a certain scattering angle measured relative to the incoming x-ray direction. What is the scattering angle of the $x$ -rays? $\left( m _ { \text {electron } } = 9.11 \times 10 ^ { - 31 } \mathrm {~kg} \right.$ , $\left. c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } , h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } \right)$

• A) \(60 ^ { \circ }\)
• B) \(40 ^ { \circ }\)
• C) \(20 ^ { \circ }\)
• D) \(80 ^ { \circ }\)

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Definitions:

Urethra

The tube that conducts urine from the bladder to the outside of the body and also serves as the duct for semen in males.

Renal Medulla

The innermost part of the kidney, comprised of renal pyramids and tubules, crucial for water and salt balance.

Bowman's Capsule

A capsule-shaped structure in the kidneys that encloses the glomerulus and is involved in the filtration of blood to form urine.

Nephron

The functional unit of the kidney involved in the process of filtering blood to produce urine, thus playing a crucial role in body fluid and electrolyte regulation.