1. electromagnetic waves are:
a. Longitudinal and transverse
b. Standing and elastic
c. Transverse
d. Longitudinal
2. Trun or False, if you change the frequency of a wave its wavelength will chage, assuming the medium in which the wave propagates stays the same.
The figure below shows a standing wave on a string with frequency f.
Choose which drawing represents the standing wave if the frequency is 3f.
Select one:
a.
O b.
d.