Because of dispersion, either lens alone would focus red rays and blue rays at different points. define δn1 and δn2 as nblue−nred for the two lenses. find an expression for the ratio δn1/δn2 that makes fblue=fred for the two-lens system. that is, the two-lens system does not exhibit chromatic aberration.

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).