Class 10 Physics MCQs – Practice Test 2 (Chapter 9)

Sound MCQ with Answers PDF – Test 2

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Sound MCQ PDF Download – Test 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;

Class 10 Physics Notes App & e-Book – Sound Exam Prep

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