Which of the following rays are electromagnetic waves?
A
X-rays (A, C)
B
γ-rays
(B, C)
(B, C)
C
β-rays 
D
Heat rays
Text Solution
Verified by ExpertsThe correct answer is:
C
Let's check each type
X-rays 
Electromagnetic waves
γ-rays (Gamma rays) 
Electromagnetic waves
β-rays 
X Stream of electrons (not EM waves)
Heat rays 
Infrared rays, which are electromagnetic waves
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