Which of the following is not an electromagnetic wave?
Show Hint
- X-rays
- $\gamma$-rays
- $\beta$-rays
- Microwaves
The Correct Option is C
Solution and Explanation
Electromagnetic (EM) waves consist of oscillating electric and magnetic fields and travel at the speed of light.
Step 2: Analysis
X-rays, $\gamma$-rays, and microwaves are all part of the EM spectrum. $\beta$-rays, however, are fast-moving electrons or positrons.
Step 3: Conclusion
$\beta$-rays are particulate radiation, not electromagnetic waves.
Final Answer: (C)
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