Learn sound MCQs, grade 10 online physics test 7, characteristics of sound multiple choice questions and answers. Characteristics of sound revision test has physics worksheets, helping answer key with choices as 20,000 hz to 25,000 hz, 15,000 hz to 18,000 hz, 10,000 hz to 15,000 hz and 30,000 hz to 35,000 hz of multiple choice questions (MCQ) with characteristics of sound quiz as people use silent whistle to call dogs whose frequency lies between for competitive exam prep, viva interview questions. Free physics study guide to practice characteristics of sound quiz 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