ea 0 t
ackbody surface can be express as R
c inf
exam) 2 1/0 11A(A,T)d,
Show that Sttf
all-Boltz
mann constant 0 can be express as
n _ 27r5kg
T562; = 5.67 x 10811.In2.1
iuf 3 4
Hlnt. .10 mil? 2 3155
(6) You are using a radiometer to observer tl tl
to maintain its temperature t 1300 r l 19 .iernial radiation from an Obje that is heated
interval of 1.) 6 11111 B I 1 – d I. The radiometer records radiation in a wavelength
radiometer t 3 C longing the wavelength at which you are measuring, you set the
1-, . , . .0 record the most intense radiation emission from the object. What is the
m ensrty ot the emitted radiation in this interval?4 In 1922: Arthur Holly Compton show that XRays photons behave like particles and the
wavelength shift of X-Rays scattered at a given angle is. absolutely independent of the intensity
of radiation and the length of exposure, and depend only on the scattering angle.(a) What is the express of wavelength shift of the scattered X-rays? M
(b) X rays Of wavelength 0.2200 nm are Compton-scattered, and the scattered beam is ob-
served at an angle 55.00 relative to the incident beam.
(1) Find the wavelength of the scattered X rays.
(ii) Find the enery of the scattered X-ray photons.
(iii) Find the kinetic energy of the scattered electrons.
(iv) Find the direction of travel of the scattered electrons.
1 a series of ex-
5 ErneSt RUtherford was able to WmSh the hgrrectldmfzgel I:faal::;e::ili:u(gal particle) follow
PBIiments with 0! Imlfiilm scattering from t in go . h olar coordinate as
fi below) then we can express the PM 5mg p
hyperbohc path (668 gure