Preview (10 questions)
1 Question
לפני 30 שניות
Q.

What are the mediums used in sound?


Air, water and wood

Gas, water and air

Elastic medium

Solid and gas

2 Question
לפני 30 שניות
Q.

Which wave is propagated when sound is produced?


Seismic waves

Electromagnetic waves

Matter waves

Mechanical waves 

3 Question
לפני 30 שניות
Q.

What is the name for the study of Sound?


Wavelengths

Susurration

Acoustics

alpha waves

4 Question
לפני 30 שניות
Q.

What is the sound frequency for humans?


40Hz to 50 kHz

30 Hz to 200 kHz

26 Hz to 200Hz

20 Hz to 20 kHz 

5 Question
לפני 30 שניות
Q.

What is the speed of sound in freshwater?


1481 m/s

1499 m/s

1489 m/s

1450 m/s

6 Question
לפני 30 שניות
Q.

What is the unit of sound pressure level?


Pascal

Decibels 

Liters

Joules

7 Question
לפני 30 שניות
Q.

Where did sound cannot travel?


Heat

Rubber

Solids

vacuum 

8 Question
לפני 30 שניות
Q.

Which instrument is used to view sound waves?


oscilloscope

Reflex hammer

Stethoscope

Radiography

9 Question
לפני 30 שניות
Q.

What kind of pressure is often measured as a level?


Differential pressure

Atmospheric pressure

Absolute pressure

Gauge pressure

10 Question
לפני 30 שניות
Q.

Who first measured the speed of sound?


Isaac Newton

Vikram Sarabhar

Chandra Bose

Shrinivas Ramanujan