PLEASE HELP! WILL MARK BRAINLIEST! If both waves have opposite signs, then interference will occur when the two waves overlap.
A. Constructive
B. Negative
C. Positive
D. Destructive

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature