to determine wavelength you measure:
a. crest to trough
b. trough to crest
c. crest to crest
d. trough to trough
e. both a and b
d. both c and d
1 answer
e. both a and b
a. crest to trough
b. trough to crest
c. crest to crest
d. trough to trough
e. both a and b
d. both c and d
1 answer