Sound multiple choice questions (MCQs), sound quiz answers 7 to learn high school physics online courses. Audible range of human ear MCQs, sound quiz questions and answers for online school degrees. Characteristics of sound, audible range of human ear, echo of sound, sound waves in physics, sound and sound waves test for high school teacher certification.

Learn high school physics MCQs: a human hear can not hear a sound of frequency less than, with choices 30 hz, 20 hz, 10 hz, and 40 hz for online school degrees. Free physics study guide for online learning audible range of human ear quiz questions to attempt multiple choice questions based test.

MCQ: People use silent whistle to call dogs whose frequency lies between

1. 15,000 Hz to 18,000 Hz
2. 20,000 Hz to 25,000 Hz
3. 10,000 Hz to 15,000 Hz
4. 30,000 Hz to 35,000 Hz

B

MCQ: A human hear can not hear a sound of frequency less than

1. 20 Hz
2. 30 Hz
3. 10 Hz
4. 40 Hz

A

MCQ: When sound is incident on surface of a medium it bounces back into first medium. phenomenon is called

1. refraction of sound
2. deflection of sound
3. defraction of sound
4. reflection of sound

D

MCQ: In a market, intensity level of sound recorded is 80 dB, intensity level of sound should be

1. 10-4Wm-2
2. 10-6Wm-2
3. 10-8Wm-2
4. 10-5Wm-2

A

MCQ: 1 bel is equal to

1. 100 dB
2. 50dB
3. 10dB
4. 20dB

C