Tunneling: a 3

question 40

Multiple Choice

Tunneling: A 3.10-eV electron is incident on a 0.40-nm barrier that is 5.67 eV high. What is the probability that this electron will tunnel through the barrier? (1 eV = 1.60 × 10^-19 J, m_el = 9.11 × 10^-31 kg, ħ = 1.055 × 10^-34 J ∙ s, h = 6.626 × 10^-34 J ∙ s)

• A) 0.56%
• B) 0.35%
• C) 0.40%
• D) 0.25%
• E) 0.48%

---

Definitions:

Afferent Vessel

A vessel that carries blood or lymph fluid towards a particular tissue or organ in the body.

Lymphoid Organ

Lymphoid organs, including the lymph nodes, spleen, and thymus, are part of the immune system and play a role in producing, storing, and carrying white blood cells.

Lymphatic Vessel

A network of thin tubes that transport lymph, a fluid containing white blood cells, throughout the body.

Lymph-collecting Vessel

Part of the lymphatic system, these vessels carry lymph, a clear fluid containing white blood cells and waste products, back towards the heart.