contestada

A wave of infrared light has a speed of 6m/s and a wave length of 12 m. What is the frequency of this wave?
A) 0.5 Hz
B) 2.p Hz
C) 18 Hz
D) 72 Hz

Respuesta :

AL2006
Frequency = speed / wavelength

(6 m/s) / (12 m) = 0.5 Hz.

That's not infrared light.
Infrared light waves move about 50 million times faster than that, and they're only about 0.00000007 as long as that.

Otras preguntas