Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells?

a. gamma rays
b. visible light
c. infrared light
d. microwaves

Answer;

A. gamma rays

Explanation;

-Electromagnetic Waves are used in the field of medicine in cancer treatment. The use of electromagnetic radiations or waves to treat cancer is called radiation therapy, in which cancer treatment uses high doses of radiations to kill cancer cells and shrink tumors.

-Gamma rays or gamma radiations are the main electromagnetic radiations used for this radiation therapy. They have high penetrating power which is dangerous enough to be used to destroy cancerous cells

a

Explanation:

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-