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Class 9 · Science · Physics

SoundPractice Questions & MCQs

Practice Sound questions for Class 9 Science - important MCQs and practice questions with answers and step-by-step solutions. Solve the sample Sound questions below, then get the full set free on the RankByte app.

Topics covered

Production and Propagation of SoundCharacteristics of a Sound Wave (Amplitude, Frequency, Wavelength)Speed of Sound in Different MediaReflection of Sound (Echo, Reverberation)Range of Hearing; Ultrasound and SONARWave nature, properties, reflection, echo, SONAR

Practice Sound by topic

Focused MCQ quizzes for each topic.

Characteristics of a Sound Wave (Amplitude, Frequency, Wavelength)Production and Propagation of SoundRange of Hearing; Ultrasound and SONARReflection of Sound (Echo, Reverberation)Speed of Sound in Different MediaWave nature, properties, reflection, echo, SONAR

SoundQuiz - Solve & Score

A few sample questions with instant answers and solutions - the full set is in the app.

  1. Q1. While a sound engineer listens, a loudspeaker emits a note of frequency 250 Hz whose wavelength measures 1.32 m; what is the speed of the sound?

    • A.189.3939 m/s
    • B.0.0053 m/s
    • C.330 m/s
    • D.251.32 m/s

    Answer: C. 330 m/s

    Wave speed = frequency * wavelength = 250 Hz * 1.32 m = 330 m/s. The speed of a sound wave equals how many waves pass per second times the length of each wave.

  2. Q2. From a buzzer a tone of frequency 340 Hz spreads out with a wavelength of 1 m; at what speed does it propagate?

    • A.341 m/s
    • B.0.0029 m/s
    • C.339 m/s
    • D.340 m/s

    Answer: D. 340 m/s

    Wave speed = frequency * wavelength = 340 Hz * 1 m = 340 m/s. The speed of a sound wave equals how many waves pass per second times the length of each wave.

  3. Q3. Out in the open a bell produces sound at 425 Hz with a wavelength of 0.8 m; what speed does the wave have?

    • A.425.8 m/s
    • B.340 m/s
    • C.0.0019 m/s
    • D.531.25 m/s

    Answer: B. 340 m/s

    Wave speed = frequency * wavelength = 425 Hz * 0.8 m = 340 m/s. The speed of a sound wave equals how many waves pass per second times the length of each wave.

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Sound - Frequently asked questions

Where can I find Sound practice questions for Class 9 Science?

RankByte has chapter-wise and topic-wise Sound practice questions and MCQs for Class 9 Science, each with the correct answer and a step-by-step solution - free to start.

Are these Sound questions important for the exam?

Yes. These Sound important questions follow the Science exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.

Do the Sound questions come with answers and solutions?

Every Sound question on RankByte comes with the correct answer and a full step-by-step solution, so you learn from each one instead of just guessing.

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