Question Number 10056 by Tawakalitu ayo mi last updated on 22/Jan/17

Infrared rays of frequency 1.0 × 10^(13)  Hz  have a wavelength of 3.0 × 10^(−5)  m in a vacuum.  The wavelenth of X rays of frequency  5.0 × 10^(16)  Hz in a vacuum will be ?

Answered by mrW1 last updated on 22/Jan/17

they have the same speed (speed of  light 3×10^8  m/s).  λ×5.0×10^(16) =3.0×10^(−5) ×1.0×10^(13)   λ=((3.0×10^(−5) ×1.0×10^(13) )/(5.0×10^(16) ))=6.0×10^(−9)  m

Commented byTawakalitu ayo mi last updated on 22/Jan/17

God bless you sir.