Question

!!DOUBLE QUESTION! HURRY! 50 PTS AND BRAINLIEST!!

Answer 1

So basically the wavelength times the frequency of an electromagnetic wave equals the speed of light.

FYI,  

λ

is the Greek letter lambda , and  

ν

is the Greek letter nu (it is not the same as a v).

Answer:  

Type of Radiation Frequency Range (Hz) Wavelength Range

gamma-rays 1020 - 1024 < 10-12 m

x-rays 1017 - 1020 1 nm - 1 pm

ultraviolet 1015 - 1017 400 nm - 1 nm

visible 4 - 7.5*1014 750 nm - 400 nm

near-infrared 1*1014 - 4*1014 2.5 μm - 750 nm

infrared 1013 - 1014 25 μm - 2.5 μm

microwaves 3*1011 - 1013 1 mm - 25 μm

radio waves < 3*1011 > 1 mm

(Ultraviolet I believe, not sure)