Solution:Concept: Gamma rays have no mass. They develop from the electromagnetic spectrum's high-frequency region.
They have the greatest ability to penetrate.
Certainly, they are ionizing.
The gamma rays may pass through both thick and thin materials because they contain a lot of energy.
Frequencies of gamma rays exceed around 1018 cycles per second, or Hertz. They have wavelengths of less than 100 pico-meters. m to less than m
Hence, the correct option is 1.