Science Flashcards
(6 cards)
1
Q
Who first discovered radio waves?
A
Heinrich Hertz
2
Q
What do you call the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies?
A
EM SPECTRUM
3
Q
Electromagnetic waves are classified as _____ waves where the elements in the medium move perpendicular to the direction of the wave motion to it’s vibration
A
Transverse
4
Q
What is common to all EM waves?
A
They all travel the same speed
5
Q
Among Em waves which have the highest energy?
A
Gamma rays
6
Q
Who discovered the Gamma Rays ?
A
Paul Villard
