Where Does the Paschen Series of Spectral Lines from Hydrogen

question 161

Multiple Choice

Where does the Paschen series of spectral lines from hydrogen gas appear in the electromagnetic spectrum?

• A) radio range, with wavelengths longer than 0.01 m or 10 mm
• B) ultraviolet region, with wavelengths between 90 nm and 130 nm
• C) infrared, with wavelengths longer than 700 nm
• D) visible region, with wavelengths between 350 nm to 660 nm

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Definitions:

Postsynaptic Membrane

A specialized area of a cell membrane in a neuron, positioned after the synaptic gap, that receives signals from another neuron.

Acetylcholinesterase

An enzyme that breaks down acetylcholine, a neurotransmitter, in the synaptic cleft, effectively terminating the signal between nerve cells.

Synaptic Vesicles

Membrane-bound sacs in the presynaptic terminal of a neuron that store neurotransmitters which are released into the synaptic cleft during neurotransmission.

Voltage-Gated Channels

Protein channels in cell membranes that open or close in response to changes in membrane voltage, crucial for nerve impulse transmission.