Q. A 511 kev gamma ray photon is Compton scattered form a free electorn in an aluminium block. What is wavelength of incident photon? What is wavelength of scattered photon? What is energy of scattered photon?
Q. The energy needed to remove an electron from metallic sodium is 2.28ev. Does sodium show photo electric effect for red light having wavelength λ= 678 nm. What is cut off wavelength for photoelectric emission from sodium?
Q. prove that H={a+ib ЄC, a2+b2=1} is a subgroup of C. Where C is complex number. H be set of real number a+b(2)1/2 where a,b Є ф. Show that H be a subgroup of non-zero real no. under multiplication.
Q. A 511 kev gamma ray photon is Compton scattered form a free electorn in an aluminium block. What is wavelength of incident photon? What is wavelength of scattered photon? What is energy of scattered photon?
Q. show that ∆E/E = hf’/moc2(1-cos ө )