What Is the Energy of an Incident Photon That Is

question 1

Multiple Choice

What is the energy of an incident photon that is just enough to excite a hydrogen atom from its ground state to its n = 4 state?

• A) 12.75 eV
• B) 10.20 eV
• C) 3.40 eV
• D) 0.85 eV

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Definitions:

Cornea

The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber, contributing to the eye's optical power.

Subarachnoid Space

The interval between the arachnoid membrane and the pia mater that is filled with cerebrospinal fluid, and surrounds the brain and spinal cord.

Cerebrospinal Fluid

A transparent, colorless fluid present within the brain and spinal cord that serves to protect the brain's cortex by cushioning it, offering essential mechanical and immunological defense within the skull.

Spinal Tap

A medical procedure where a needle is inserted into the lower back to collect cerebrospinal fluid for testing.