Question

Which best explains why infrared waves are ineffective for treating cancer?

a)They have frequencies that are too high to kill cancer cells.
b)They have short wavelengths, which can be harmful to healthy cells.
c)They do not transfer enough energy to destroy cancer cells.
d)They have long wavelengths, which can be harmful to healthy cells.

Answer 1

C.

Infrared waves do not carry enough energy to kill cancerous cells.

Answer 2

Answer is: c) They do not transfer enough energy to destroy cancer cells.

Infrared waves (IR) is electromagnetic radiation with longer wavelengths than those of visible light.

IR wavelengths is from the nominal red edge of the visible spectrum at 700 nanometers (frequency 430 THz) to 1 millimeter (300 GHz).

For example, gamma rays contain much more energy (most penetrating) than infrared waves, because they have a greater frequencies.

Gamma rays are the electromagnetic waves with the shortest wavelengths (1 pm), highest frequencies (300 EHz) and highest energy (1,24 MeV).