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Q. A sound wave has a frequency of 440 Hz. What is its period?
  • A. 0.00227 s
  • B. 0.00455 s
  • C. 0.01 s
  • D. 0.1 s
Q. If a sound source moves towards a stationary observer, what happens to the frequency heard by the observer?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. If a sound source moves towards an observer, what effect does it have on the frequency heard by the observer?
  • A. Decreases
  • B. Increases
  • C. Remains the same
  • D. Becomes zero
Q. If a sound source moves towards an observer, what happens to the frequency heard by the observer?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. If a sound wave travels 1 km in 3 seconds, what is its speed?
  • A. 300 m/s
  • B. 1000 m/s
  • C. 333 m/s
  • D. 500 m/s
Q. If a sound wave travels from air into water, what happens to its speed?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In which medium does sound travel the slowest?
  • A. Air
  • B. Water
  • C. Steel
  • D. Vacuum
Q. What is the decibel level of a sound that is 10 times more intense than a reference sound at 0 dB?
  • A. 10 dB
  • B. 20 dB
  • C. 30 dB
  • D. 40 dB
Q. What is the decibel level of a sound that is 10 times more intense than the reference level of 0 dB?
  • A. 10 dB
  • B. 20 dB
  • C. 30 dB
  • D. 40 dB
Q. What is the decibel level of a sound that is perceived as the threshold of hearing? (2022)
  • A. 0 dB
  • B. 10 dB
  • C. 20 dB
  • D. 30 dB
Q. What is the effect called when sound waves spread out after passing through a narrow opening? (2019)
  • A. Reflection
  • B. Refraction
  • C. Diffraction
  • D. Interference
Q. What is the frequency of a sound wave with a wavelength of 2 meters traveling at 340 m/s?
  • A. 170 Hz
  • B. 340 Hz
  • C. 680 Hz
  • D. 3400 Hz
Q. What is the phenomenon called when sound waves bounce off a surface? (2021)
  • A. Refraction
  • B. Reflection
  • C. Diffraction
  • D. Interference
Q. What is the relationship between the amplitude of a sound wave and its loudness?
  • A. Directly proportional
  • B. Inversely proportional
  • C. No relationship
  • D. Exponential relationship
Q. What is the threshold of hearing in decibels?
  • A. 0 dB
  • B. 10 dB
  • C. 20 dB
  • D. 30 dB
Q. What phenomenon occurs when sound waves bounce off a surface?
  • A. Refraction
  • B. Diffraction
  • C. Reflection
  • D. Absorption
Q. Which of the following frequencies is considered ultrasonic?
  • A. 20 Hz
  • B. 20 kHz
  • C. 20 MHz
  • D. 200 Hz
Q. Which of the following is a characteristic of sound waves? (2023)
  • A. Transverse waves
  • B. Longitudinal waves
  • C. Electromagnetic waves
  • D. Static waves
Q. Which of the following materials has the highest speed of sound?
  • A. Air
  • B. Water
  • C. Steel
  • D. Wood
Q. Which of the following materials is the best conductor of sound?
  • A. Air
  • B. Water
  • C. Steel
  • D. Wood
Q. Which of the following materials would sound travel fastest through? (2019)
  • A. Air
  • B. Water
  • C. Steel
  • D. Wood
Showing 1 to 21 of 21 (1 Pages)

Sound MCQ & Objective Questions

Understanding the concept of sound is crucial for students preparing for school and competitive exams. Sound plays a significant role in various subjects, making it essential to practice MCQs and objective questions. By engaging with these practice questions, students can enhance their grasp of important concepts and improve their exam scores.

What You Will Practise Here

  • Definition and properties of sound
  • Types of sound waves: longitudinal and transverse
  • Speed of sound in different mediums
  • Reflection, refraction, and diffraction of sound
  • Sound intensity and loudness
  • Applications of sound in daily life
  • Key formulas related to sound waves

Exam Relevance

The topic of sound is frequently featured in CBSE, State Boards, NEET, and JEE exams. Students can expect questions related to the properties of sound, its behavior in various mediums, and practical applications. Common question patterns include multiple-choice questions that test conceptual understanding and numerical problems that require the application of formulas.

Common Mistakes Students Make

  • Confusing the types of sound waves and their characteristics
  • Misunderstanding the relationship between frequency, wavelength, and speed of sound
  • Neglecting the effects of temperature and medium on sound speed
  • Overlooking the practical applications of sound in real-life scenarios

FAQs

Question: What are the main properties of sound?
Answer: The main properties of sound include pitch, loudness, and timbre, which are influenced by frequency, amplitude, and waveform, respectively.

Question: How does sound travel in different mediums?
Answer: Sound travels fastest in solids, slower in liquids, and slowest in gases due to the differences in particle density and elasticity.

Now is the time to boost your understanding of sound! Dive into our practice MCQs and test your knowledge to ensure you are well-prepared for your exams. Remember, consistent practice with sound objective questions will help you master this topic and achieve your academic goals.

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