Two Simple Astronomy Questions?

RickySingh2006

New member
You take a spectrum of a star. Which of the following cannot be used to measure its surface temperature?
A. Peak wavelength of its continuous spectrum
B. Color of its continuous spectrum in the visible band
C. Presence and intensities of spectral lines
D. Widths of spectral lines
E. Doppler shift of spectral lines

Which of the following was not considered to be strong evidence for the wave nature of light?
A. Refraction
B. Diffraction
C. Interference
D. Polarization
 
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