In a double-slit experiment, the third-order maximum for light of wavelength 490 nm is located 12 mm from the central bright spot on a screen 1.6 m from the slits. light of wavelength 630 nm is then projected through the same slits. how far from the central bright spot will the second-order maximum of this light be located?
express your answer to two significant figures and include the appropriate units.

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.

Iwould say the answer is d

Answeronly the mass of a black hole