Question

X-rays

A) were first discovered in 1895 prior to Planck's concept of quanta.

B) demonstrate that phenomena of electron kinetic energy being transformed into photon

energy.

C) are an extremely penetrating form of radiation.

D) all of the above are true.

​

Answer 1

Answer:

Ansd) all of the above are true

Answer 2

Answer:

Answer: (D.) All above are correct.

Explanation:

Hope this helps you.

Mark as Brainlist .