What Would Be the Observed Wavelength for the Balmer H $\alpha$

question 27

Multiple Choice

What would be the observed wavelength for the Balmer H $\alpha$ line emitted at 486.1 nm by a quasar at redshift z =5?

• A) 2.9 µm
• B) 81.0 nm
• C) 21.0 cm
• D) 121.6 nm
• E) 1.2 µm

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Definitions:

Downward-sloping Demand Curve

A graph showing that the quantity demanded of a good or service varies inversely with its price, other things being equal.

Equilibrium Price

The price at which the quantity of a product demanded by consumers equals the quantity supplied by producers.

Consumer Surplus

The divergence between the total payment consumers are willing to make for a product or service and what they really pay.

Demand Increase

A situation where consumers are willing and able to purchase more of a product or service at each price level, often caused by changes in tastes, income, or prices of related goods.