NEET Physics: Waves — MCQ Test 4

Q6. A string of mass 0.06 kg and length 3 m is under a tension of 150 N. How long does it take a transverse pulse to travel its length?

Q7. A string of length 3.2 m and mass 0.064 kg has a fundamental frequency of 25 Hz. What is the tension in the string?

Q8. A wave is described by \( y(x, t) = 0.03 \sin (35x - 70t) \), where \( x \) and \( y \) are in meters and \( t \) in seconds. What is the speed of the wave?

Q9. A pipe open at both ends has a length of 0.6 m and resonates with a source of frequency 850 Hz. What is the harmonic number if the speed of sound is 340 m/s?

Q10. A copper rod has a density of 8900 kg/m³ and a longitudinal wave speed of 3560 m/s. What is its Young’s modulus?

Q11. Which condition must be satisfied for two waves to form a standing wave pattern?

Q12. Two waves \( y_1 = 5 \sin (6x - 12t) \) and \( y_2 = 5 \sin (6x - 12t + \frac{\pi}{3}) \) interfere. What is the amplitude of the resultant wave?

Q13. A transverse wave on a string has a speed of 15 m/s and a period of 0.05 s. What is its wavelength?

Q14. In a transverse wave traveling along a stretched string, which property of the medium primarily determines the speed of the wave?

Q15. What is the condition for maximum constructive interference between two waves?

NEET Physics — Waves

Free MCQ Test 4 of 22

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A wave \( y = 0.06 \sin (18x - 54t) \) reflects at an open boundary. What is the equation of the reflected wave?

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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 15 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 Reflects, Boundary, Equation, Reflected, Frequency, and Harmonic.

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 wave \( y = 0.06 \sin (18x - 54t) \) reflects at an open boundary. What is the equation of the reflected wave?

  • A. \( y = -0.06 \sin (18x + 54t) \)
  • B. \( y = 0.06 \sin (18x - 54t) \)
  • C. \( y = 0.06 \sin (18x + 54t) \)
  • D. \( y = -0.06 \sin (18x - 54t) \)

Q2. A string fixed at both ends has a length of 1.6 m and a wave speed of 80 m/s. What is the frequency of its first harmonic?

  • A. 25 Hz
  • B. 20 Hz
  • C. 30 Hz
  • D. 35 Hz

Q3. What causes the intensity of a sound wave to decrease as it travels through a medium?

  • A. Increase in frequency
  • B. Decrease in speed
  • C. Energy dissipation
  • D. Phase change

Q4. What is the relationship between the wavelengths of the fundamental mode and the second harmonic in a string fixed at both ends?

  • A. They are equal
  • B. Second harmonic is half the fundamental
  • C. Second harmonic is double the fundamental
  • D. No fixed relationship

Q5. The bulk modulus of water is 2.2 × 10⁹ Pa and its density is 1000 kg/m³. What is the speed of sound in water?

  • A. 1400 m/s
  • B. 1480 m/s
  • C. 1500 m/s
  • D. 1600 m/s

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