NEET Physics: Waves — MCQ Test 21

Q6. A steel rod of length 1.5 m has a fundamental frequency of longitudinal vibrations of 2 kHz. What is the speed of sound in the rod?

Q7. Two waves of frequencies 510 Hz and 514 Hz interfere. How many beats are heard in 15 seconds?

Q8. A string of length 4 m and mass 0.08 kg is under a tension of 200 N. How long does a transverse pulse take to travel its length?

Q9. A string of length 3 m and mass 0.06 kg is under a tension of 150 N. What is the speed of a transverse wave on the string?

Q10. A pipe open at both ends has a length of 0.68 m and resonates with a source of frequency 750 Hz. What is the harmonic number if the speed of sound is 340 m/s?

NEET Physics — Waves

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A pipe open at both ends has a length of 0.34 m and resonates with a source of frequency 1000 Hz. What is the harmonic number if the speed of sound is 340 m/s?

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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 Resonates, Frequency, Harmonic, Property, Critical, and Propagation.

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 0.34 m and resonates with a source of frequency 1000 Hz. What is the harmonic number if the speed of sound is 340 m/s?

  • A. 1
  • B. 2
  • C. 3
  • D. 4

Q2. Which property of a medium is most critical for the propagation of longitudinal waves through a gas?

  • A. Bulk modulus
  • B. Shear modulus
  • C. Viscosity
  • D. Density

Q3. A transverse wave on a string has a tension of 180 N and a linear mass density of 0.03 kg/m. What is the wavelength if the frequency is 20 Hz?

  • A. 3.5 m
  • B. 3.8 m
  • C. 4 m
  • D. 3.87 m

Q4. A stationary wave on a string fixed at both ends has a frequency of 150 Hz and a wave speed of 45 m/s. What is the wavelength?

  • A. 0.2 m
  • B. 0.25 m
  • C. 0.35 m
  • D. 0.3 m

Q5. Two waves \( y_1 = 4 \sin (5x - 10t) \) and \( y_2 = 4 \sin (5x - 10t + \frac{\pi}{6}) \) interfere. What is the amplitude of the resultant wave?

  • A. 4 m
  • B. 7.7 m
  • C. 8 m
  • D. 6 m

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