A. Ultra violet rays
B. Ultrasonic vibrations
C. Infrared rays
D. Gamma rays
Correct Answer: Gamma rays ✔
Last Updated: February 07, 2020
A. Ultra violet rays
B. Ultrasonic vibrations
C. Infrared rays
D. Gamma rays
Correct Answer: Gamma rays ✔
Last Updated: February 07, 2020