Question

X-ray technicians wear protective gear to keep them safe from the X-rays. Why are X-rays dangerous?

They have long wavelengths that can penetrate materials, and their low energy can damage matter.
They have short wavelengths that can penetrate materials, and their low energy can damage matter.
They have long wavelengths that can penetrate materials, and their high energy can damage matter.
They have short wavelengths that can penetrate materials, and their high energy can damage matter.

Answer 1

Answer: They have short wavelengths that can penetrates materials, and their high energy can damage matter

Step-by-step explanation:

The shorter the wavelength - the more the energy it contains, so you can immediately eliminate option 2 as short wavelengths AND low energy does not make sense

The shorter the wavelength - the more easily it can penetrate objects, so you can eliminate options 1 and 3 as well

This leaves only option 4 as a reasonable answer

Answer 2

They have short wavelengths and high energy

E = h ν = h c / λ