Waves produced at the surface of water by a pencil executing vibrating motion if held vertically at a frequency of 50Hz are__________________?

Waves produced at the surface of water by a pencil executing vibrating

1.	Waves produced at the surface of water by a pencil executing vibrating motion if held vertically at a frequency of 50Hz are__________________?
A.	Longitudinal
B.	Transverse
C.	Periodic
D.	both A and C
Answer» E.