Spectroscopy

Spectroscopes use ______ or ______ to divide white light into a rainbow spectrum.

• prisms and diffraction gratings

• lenses and mirrors

• filters and polarizers

• coils and magnets

Another name for the absorption lines of the Sun is:

• Fraunhofer lines

• Newton lines

• Solar bands

• Spectral rays

Who realized that the Sun's absorption lines matched emission lines of various elements?

• Doppler & Bunsen

• Fraunhofer & Doppler

• Kirchoff & Bunsen

• Fraunhofer & Kirchoff

What did Kirchoff use to investigate emission spectra and absorption spectra?

• A telescope

• A spectroscope

• A microscope

• A thermometer

Which instrument is used to analyze the composition of light from stars?

• Microscope

• Spectroscope

• Radio telescope

• Interferometer

Astronomers had been able to determine the composition of the Sun and other stars since the...

• 300s B.C. (Ancient Greece)

• A.D. 1,000s (early Medieval period)

• A.D. 1,500s (Renaissance)

• A.D. 1800s (Industrial Revolution)

Which of the following correctly matches one of Kirchoff’s Laws with the kind of spectrum it addresses?

• 1st law = continuous spectrum

• 1st law = absorption spectrum

• 1st law = emission spectrum

• 1st law = line spectrum

Based on Kirchoff's Laws, what kind of spectra does the 1st law describe?

• absorption spectrum

• emission spectrum

• continuous spectrum

• dark background with colorful lines

Based on Kirchoff's Laws, what kind of spectra does the 2nd law describe?

• continuous spectrum

• absorption spectrum

• emission spectrum

• full rainbow with no lines

Based on Kirchoff's Laws, what kind of spectra does the 3rd law describe?

• continuous spectrum

• emission spectrum

• absorption spectrum

• colorful rainbow background with dark lines