NEET Physics: Waves — MCQ Test 15

Q6. A stationary wave on a string fixed at both ends has a frequency of 100 Hz and a wave speed of 40 m/s. What is the length of the string?

Q7. A wave on a string has an amplitude of 0.02 m and a period of 0.01 s. What is the maximum transverse speed of a particle?

Q8. A transverse wave on a string has a speed of 30 m/s and a wavelength of 1.5 m. What is the time period of the wave?

Q9. A transverse wave on a string has a speed of 24 m/s and a period of 0.02 s. What is its wavelength?

Q10. Two waves of frequencies 465 Hz and 470 Hz interfere. How many beats are heard in 12 seconds?

NEET Physics — Waves

Free MCQ Test 15 of 22

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A pipe open at both ends has a length of 0.85 m and a speed of sound of 340 m/s. What is the frequency of its first harmonic?

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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 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 Frequency, Harmonic, Fundamental, Reflects, Boundary, and Equation.

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. A pipe open at both ends has a length of 0.85 m and a speed of sound of 340 m/s. What is the frequency of its first harmonic?

  • A. 150 Hz
  • B. 180 Hz
  • C. 200 Hz
  • D. 220 Hz

Q2. A string of length 1.8 m and mass 0.045 kg has a fundamental frequency of 40 Hz. What is the tension in the string?

  • A. 500 N
  • B. 510 N
  • C. 518 N
  • D. 525 N

Q3. A wave \( y = 0.04 \sin (30x - 60t) \) reflects at an open boundary. What is the equation of the reflected wave?

  • A. \( y = -0.04 \sin (30x + 60t) \)
  • B. \( y = 0.04 \sin (30x - 60t) \)
  • C. \( y = 0.04 \sin (30x + 60t) \)
  • D. \( y = -0.04 \sin (30x - 60t) \)

Q4. A string fixed at both ends has a length of 2 m and a wave speed of 90 m/s. What is the frequency of its third harmonic?

  • A. 60 Hz
  • B. 65 Hz
  • C. 67.5 Hz
  • D. 70 Hz

Q5. A pipe closed at one end has a length of 0.5 m and resonates at its fundamental frequency with a speed of sound of 350 m/s. What is the frequency?

  • A. 150 Hz
  • B. 160 Hz
  • C. 175 Hz
  • D. 200 Hz

+ 5 more questions in the actual test

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