Why Do We See a Gravitational Redshift in the Spectrum

question 26

Multiple Choice

Why do we see a gravitational redshift in the spectrum of the Sun?

• A)Gravity makes light heavy,causing it to appear redder.
• B)Because of gravity,the Sun is always moving away from us,so we see a redshift.
• C)Time runs slower on the Sun than on Earth,making lines in the solar spectrum have lower frequency and hence longer wavelength than normal.
• D)Spacetime curvature allows red photons of light to escape the Sun more easily than blue photons,leading to an apparent redshift.

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Definitions:

Board of Directors

A group of individuals elected by shareholders to oversee the management and make major decisions for a company.

Preferred Stock

A class of ownership in a corporation with a fixed dividend that must be paid out before dividends to common stockholders and which typically does not have voting rights.

Ownership Interest

Refers to the rights and stake a person holds in a particular asset or business, often entailing voting rights and a share in the profits.

Preferred Stock

A class of share ownership in a corporation that has a higher claim on assets and earnings than common stock, often with fixed dividends.