What Is the Wavelength of the Photon Emitted When an Electron

question 48

Multiple Choice

What is the wavelength of the photon emitted when an electron in a hydrogen atom which is in the initial state n = 4 jumps to the final state n = 2? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19 J)

• A)243 nm
• B)486 nm
• C)556 nm
• D)312 nm
• E)609 nm

---

Definitions:

Duty

A moral or legal obligation to perform or refrain from performing some action, often derived from one's role, position, or circumstances.

Happiness

A state of well-being and contentment, often considered as an aim in life and a factor in evaluating the quality of life.

Utilitarianism

An ethical theory that posits the best action is the one that maximizes utility, typically defined as maximizing happiness and reducing suffering.

Roman Catholic Natural Law Ethics

An ethical theory based on the belief that the moral law is discoverable by every person through the use of reason and is grounded in human nature and purpose, as taught within Roman Catholic theology.