Match List I with List II :
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}
.tg .tg-amwm{font-weight:bold;text-align:center;vertical-align:top}
.tg .tg-0lax{text-align:left;vertical-align:top}
List I
List II
A.
Microwaves
I.
Radio active decay of the nucleus
B.
Gamma rays
II.
Rapid acceleration and deceleration of electron in aerials
C.
Radio waves
III.
Inner shell electrons
D.
X-rays
IV.
Klystron valve
Choose the correct answer from the options given below :