Class 10 Physics MCQs - Chapter 9

Sound Multiple Choice Questions (MCQ) PDF - 2

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The MCQs: Sounds of frequency higher than 20,000 Hz which are inaudible to normal human ear are called; "Sound" App Download Android & iOS (Free) with answers frequency, noise, ultrasonic and amplitude for high school certificate courses. Practice ultrasound quiz questions, download Apple Book (Free Sample) for virtual high school.

Sound Questions & Answers PDF Download: MCQ Quiz 2

MCQ 6: Sounds of frequency higher than 20,000 Hz which are inaudible to normal human ear are called

noise
frequency
ultrasonic
amplitude

MCQ 7: The loudness and amplitude of sound varies

directly
inversely
Not related
proportionally

MCQ 8: The speed of sound varies with

humidity only
temperature only
pressure
humidity and temperature

MCQ 9: The scale to measure the intensity level of sound is called

vector scale
measuring ruler
bel scale
decibel scale

MCQ 10: To find the speed of sound, we use the relation

v = fλ
f = vλ
lambda = fv
v = f + lambda;

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