NEET Physics: Waves — MCQ Test 22

Q6. Two strings produce beats of 4 Hz. One has a frequency of 320 Hz. When the tension in the second string is increased, the beat frequency becomes 2 Hz. What was the original frequency of the second string?

Q7. A string fixed at both ends has a length of 1.6 m and a fundamental frequency of 62.5 Hz. What is the speed of the wave?

Q8. A string of length 2.2 m fixed at both ends has a wave speed of 66 m/s. What is the frequency of its fourth harmonic?

Q9. A string fixed at both ends has a length of 1.4 m and a wave speed of 70 m/s. What is the frequency of its second harmonic?

Q10. Which wave property is most affected when a sound wave encounters a change in the medium’s temperature?

NEET Physics — Waves

Free MCQ Test 22 of 22

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A string fixed at both ends has a length of 1.5 m and a fundamental frequency of 50 Hz. What is the speed of the wave on the string?

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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 Fundamental, Frequency, Transverse, Interfere, Amplitude, and Resultant.

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 string fixed at both ends has a length of 1.5 m and a fundamental frequency of 50 Hz. What is the speed of the wave on the string?

  • A. 100 m/s
  • B. 125 m/s
  • C. 150 m/s
  • D. 175 m/s

Q2. A string of length 2 m and mass 0.01 kg is under a tension of 100 N. What is the time taken by a transverse pulse to travel from one end to the other?

  • A. 0.01 s
  • B. 0.014 s
  • C. 0.02 s
  • D. 0.028 s

Q3. Two waves \( y_1 = 3 \sin (8x - 16t) \) and \( y_2 = 3 \sin (8x - 16t + \frac{2\pi}{3}) \) interfere. What is the amplitude of the resultant wave?

  • A. 6 m
  • B. 3 m
  • C. 4.5 m
  • D. 5 m

Q4. Why are standing waves formed in musical instruments like a guitar?

  • A. Due to high amplitude
  • B. Due to varying tension
  • C. Due to reflection at boundaries
  • D. Due to random vibrations

Q5. A steel rod of length 2 m has a fundamental frequency of longitudinal vibrations of 1.25 kHz. What is the speed of sound in the rod?

  • A. 4500 m/s
  • B. 4800 m/s
  • C. 5000 m/s
  • D. 5200 m/s

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