A Blue Line in the Spectrum of the Hydrogen Atom $\lambda$

question 81

Multiple Choice

A blue line in the spectrum of the hydrogen atom has a wavelength $\lambda$ = 486 nm.In the hydrogen-atom spectrum emitted by a distant galaxy,this line is observed on Earth at $\lambda$ = 550 nm.With what speed is this galaxy receding from us? (The speed of light is 3.0 $\times$ 10⁸ m/s.)

• A)1.31 \(\times\) 10⁷ m/s
• B)1.13 \(\times\) 10⁸ m/s
• C)2.65 \(\times\) 10⁸ m/s
• D)3.49 \(\times\) 10⁷ m/s
• E)3.95 \(\times\) 10⁷ m/s

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Definitions:

Secured Interests

Interests in personal property or fixtures that secure payment or performance of an obligation, often seen in lending and financing agreements.

Take Possession

Take possession refers to the act of assuming physical control or ownership of a piece of property or asset.

Collateral

Assets promised as security for the repayment of a loan, which can be seized by the lender if the borrower fails to repay according to the terms of the loan agreement.

Security Agreement

A legal document that provides a lender a security interest in a specified asset or property that is pledged as collateral.