question_answer 9)

The terminology of different parts of theelectromagnetic spectrum is given in the text.Use the formula (for energy of aquantum of radiation : photon) and obtain thephoton energy in units of for differentparts of the electromagnetic spectrum. In whatway are the different scales of photon energiesthat you obtain related to the sources ofelectromagnetic radiation?  

Answer:

Using the relation for photon energy,                 we get                 For  we get                                  Energy for other wavelengths can be worked out from the relation                                 (a) For rays let  be  then                                                 (b) For rays let be , then                                                 (c) For visible light let  be  then                 (d) For microwaves let  be  then (e) For radiowaves let  be  then Conclusion. The above result indicates thatthe different wavelengths in theelectromagnetic spectrum can be got bymultiplying roughly the powers of ten. The visible wavelengths are spaced by afew eV. The nuclear energy levels (from y rays)are spaced about .