If vs, vx and vm are the speed of soft gamma rays, X-rays and microwaves respectively in vacuum, then
A. vs > vx > vm
B. vs < vx < vm
C. vs > vx < vm
D. vs : vx : vm
Answer:D
If vs, vx and vm are the speed of soft gamma rays, X-rays and microwaves respectively in vacuum, then
A. vs > vx > vm B. vs < vx < vm C. vs > vx < vm D. vs : vx : vm