Karmveer

                       10.Sound-Production of Sound

1. ..................is necessary for sound to be produced.

Medium
Vibration


2. A man can hear sounds of frequencies between 20 Hz to...........Hz

20000
2000


3. Inaudiable sounds are also called....................sound.

Infrasonic
Ultrasonic


4. ....................sounds is used to measure depth of ocean floor

Ultrasonic
Infrasonic


5. Frequency increases if amplitude is increases.

True
False

Online Test created and linked by Shri.Pagar P.B. Asst.Teacher N E S Chandori Tal-Niphad Dist-Nashik