If astronomers look toward any point in outer space, they see radiation that matches the emission spectrum of an object at 2.7 K, a remnant of the Big Bang.
a) What is the peak wavelength of this radiation? (lambda = ?)
b) What part of the electormagnetic spectum is it in?
Radio Region
Microwave Region
Visible Region
Ultraviolet Region
X-Rays Region
Gamma-Rays Region
From the Weins displacemnt law , the peak wave length is
lamda ( peak) T = b
where b is Weins constant
lamda ( peak) = b/T = 2.898 * 10 ^-3 K/2.7 K = 1.07 mm
(b)
micro wave region
If astronomers look toward any point in outer space, they see radiation that matches the emission...
Be sure to answer all parts. (a) What is the wavelength (in nm) of radiation that has an energy content of 3.55 × 103 kJ/mol? __× 10__ nm (b) In which region of the electromagnetic spectrum is this radiation found? gamma ray visible radio wave microwave X-ray ultraviolet infrared