Q18. Which pair of emissions travels with the same speed in air?
A alpha-particles and gamma-rays
B gamma-rays and infra-red waves
C С infra-red waves and sound waves
D sound waves and alpha-particles
Answers
Answered by
4
Explanation:
Radiation is energy. It can come from unstable atoms that undergo radioactive decay, or it can be produced by machines. Radiation travels from its source in the form of energy waves or energized particles. There are different forms of radiation and they have different properties and effects.
Answered by
0
Answer:
Option D
Explanation:
sound waves and alpha particles
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