Author Question: An electron vibrating to and fro 1000 times per second generates an electromagnetic wave having a ... (Read 41 times)

RODY.ELKHALIL · **on:** Jul 29, 2018

An electron vibrating to and fro 1000 times per second generates an electromagnetic wave having a

A) period of 1000 s.
B) speed of 1000 m/s.
C) wavelength of 1000 m.
D) frequency of 1000 Hz.

Question 2

If a light signal and a radio signal were emitted simultaneously from the Moon, the first signal to reach Earth would be

A) radio.
B) light.
C) both of these
D) none of the above