NEET Physics: Electromagnetic Waves — MCQ Test 24

Q6. What protects the Earth from most of the sun's ultraviolet radiation?

Q7. An electromagnetic wave has a wave number \( k = 1 \, \text{rad/m} \). What is its wavelength in vacuum?

Q8. What is one environmental concern related to the depletion of the ozone layer mentioned in the document?

Q9. Which of Maxwell's equations relates the electric field to the rate of change of magnetic flux?

Q10. In the electromagnetic spectrum, what distinguishes gamma rays as particularly penetrating?

NEET Physics — Electromagnetic Waves

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Which type of electromagnetic waves are produced by special vacuum tubes like klystrons and magnetrons?

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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 Electromagnetic, Produced, Klystrons, Magnetrons, Wavelength, and Spectrum.

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. Which type of electromagnetic waves are produced by special vacuum tubes like klystrons and magnetrons?

  • A. Radio waves
  • B. Microwaves
  • C. Infrared waves
  • D. Ultraviolet waves

Q2. What is the typical wavelength range of gamma rays as per the electromagnetic spectrum?

  • A. \( 400 \, \text{nm} \) to \( 0.6 \, \text{nm} \)
  • B. \( 10 \, \text{nm} \) to \( 10^{-4} \, \text{nm} \)
  • C. \( 10^{-10} \, \text{m} \) to \( 10^{-14} \, \text{m} \)
  • D. \( > 0.1 \, \text{m} \)

Q3. A capacitor in a circuit has a conduction current of \( 1.8 \, \text{A} \) in the wires. What is the displacement current between the plates?

  • A. 1.8 A
  • B. 0.9 A
  • C. 3.6 A
  • D. 0 A

Q4. Which frequency range includes TV waves according to the document?

  • A. \( 530 \, \text{kHz} \) to \( 1710 \, \text{kHz} \)
  • B. \( 88 \, \text{MHz} \) to \( 108 \, \text{MHz} \)
  • C. \( 54 \, \text{MHz} \) to \( 890 \, \text{MHz} \)
  • D. \( 4 \times 10^{14} \, \text{Hz} \) to \( 7 \times 10^{14} \, \text{Hz} \)

Q5. Which type of electromagnetic waves are emitted by hot bodies and molecules?

  • A. Ultraviolet waves
  • B. Infrared waves
  • C. Microwaves
  • D. Radio waves

+ 5 more questions in the actual test

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