Q327
The subatomic particles arriving from outer space having high energy are called
A.
protons
B.
electrons
C.
cosmic rays
AnswerD.
None of the above
Answer: Option C
Solution
Answer: Option C
Solution:
The subatomic particles arriving from outer space having high energy are called cosmic rays. High-energy particles arriving from outer space are mainly (89%) protons – nuclei of hydrogen, the lightest and most common element in the universe – but they also include nuclei of helium (10%) and heavier nuclei (1%), all the way up to uranium.