Why Don't We See Hydrogen Balmer Lines in the Spectra

question 159

Multiple Choice

Why don't we see hydrogen Balmer lines in the spectra of stars with temperatures of 45,000 K

• A)There is no hydrogen in stars this hot.
• B)The stars are hot enough that most of the hydrogen is ionized and the atoms cannot absorb energy.
• C)These stars are so cool that nearly all of the electrons in the hydrogen atom are in the ground state.
• D)Stars of this temperature are too cool to produce an absorption spectrum.
• E)Stars of this temperature are too hot to produce an absorption spectrum.

Understand the importance of direct and clear communication with patients over the phone.

Recall the correct procedures for taking and managing telephone messages in a medical setting.

Identify strategies to handle difficult or angry patients calmly and professionally.

Recognize the significance of summarizing key points to ensure mutual understanding before ending a call.

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Definitions:

Shortage/Surplus

A situation in the market where the amount of a product that consumers want to buy is greater than the amount available (resulting in a shortage), or the available amount is more than what consumers want to purchase (leading to a surplus).

Demand Equation

A formula that calculates the amount of a product consumers are willing to buy based on its price, income levels, and taste and preferences among other factors.

Supply Equation

A mathematical representation showing the relationship between the quantity of goods suppliers are willing to produce and various influencing factors like price and production costs.

Per-Unit Tax

A tax imposed on a product based on a fixed amount for each unit sold, affecting the supply curve by increasing the cost of production.