Which among X-rays, gamma rays, beta rays and heat radiation is NOT an electromagnetic wave?
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Question

Which among X-rays, gamma rays, beta rays and heat radiation is NOT an electromagnetic wave?

G1 Physics · Accepted Answer

Step 1: X-rays, γ-rays and infrared/heat rays are all electromagnetic waves. Step 2: β-rays are streams of high-energy electrons or positrons, not EM radiation. Step 3: Therefore β-rays are NOT electromagnetic. Correct C. Final answer: (C) B-rays.