NEET Physics: Electromagnetic Waves — MCQ Test 14

Q6. What is one technological importance of electromagnetic waves mentioned in the document?

Q7. Why are microwaves suitable for use in radar systems?

Q8. Why can't visible light electromagnetic waves be produced by an oscillating circuit at \( 6 \times 10^{14} \, \text{Hz} \)?

Q9. Infrared waves contribute to Earth's warmth through which effect?

Q10. An electromagnetic wave in vacuum has a frequency of \( 20 \, \text{MHz} \). What is its wavelength? (Given \( c = 3 \times 10^8 \, \text{m/s} \))

NEET PhysicsElectromagnetic Waves

Free MCQ Test 14 of 24

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Medium

What does Gauss's Law for magnetism imply in Maxwell's equations?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Electromagnetic Waves. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Magnetism, Equations, Infrared, Important, Maintaining, and Temperature.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. What does Gauss's Law for magnetism imply in Maxwell's equations?

  • A. No magnetic monopoles exist
  • B. Magnetic fields are proportional to charge
  • C. Magnetic fields induce electric fields
  • D. Magnetic flux is always constant

Q2. Why are infrared waves important for maintaining Earth's average temperature?

  • A. They reflect sunlight
  • B. They emit UV radiation
  • C. They contribute to the greenhouse effect
  • D. They cool the atmosphere

Q3. Why can’t one get tanned through ordinary glass windows?

  • A. Glass emits infrared radiation
  • B. Glass reflects visible light
  • C. Glass scatters UV radiation
  • D. Glass absorbs UV radiation

Q4. What is the frequency range of the FM radio band?

  • A. \( 530 \, \text{kHz} \) to \( 1710 \, \text{kHz} \)
  • B. \( 54 \, \text{MHz} \) to \( 890 \, \text{MHz} \)
  • C. \( 500 \, \text{kHz} \) to \( 1000 \, \text{MHz} \)
  • D. \( 88 \, \text{MHz} \) to \( 108 \, \text{MHz} \)

Q5. Why do welders wear special glass goggles during welding?

  • A. To enhance visible light
  • B. To detect infrared radiation
  • C. To prevent heat exposure
  • D. To protect from UV radiation

+ 5 more questions in the actual test

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