If the speed of light is 3×108 meters/second and the wavelength of an infrared wave used in a remote control is 7×10−9 m
Posted: Sun May 22, 2022 9:50 am
If the speed of light
is 3×108 meters/second and the wavelength of
an infrared wave used in a remote control
is 7×10−9 meters, then what is its frequency?
A. 4×1016 Hz
B. 4×10−2 Hz
C. 2×100 Hz
D. 2×10−17 Hz
is 3×108 meters/second and the wavelength of
an infrared wave used in a remote control
is 7×10−9 meters, then what is its frequency?
A. 4×1016 Hz
B. 4×10−2 Hz
C. 2×100 Hz
D. 2×10−17 Hz