Gamma rays are produced by applying ___________
A.) electric and magnetic fields at right angles to each other
B.) electric and magnetic fields parallel to each other
C.) crests and troughs at right angles to each other
D.) crests and troughs parallel to each other
A.) electric and magnetic fields at right angles to each other
B.) electric and magnetic fields parallel to each other
C.) crests and troughs at right angles to each other
D.) crests and troughs parallel to each other