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

Gamma rays

Explanation:

In the electromagnetic spectrum, the energy of gamma rays is maximum and even their penetrating power is very high.

The increasing order of energy of electromagnetic spectrum is given by

Radio waves < Micro waves < Infrared rays < Visible rays < Ultra violet rays < X rays < Gamma rays

So, gamma rays are highly energetic and they can kill the cancerous cells in the body.

Your answer is A. Gamma Rays