Sound & Acoustics MCQs with Answers

The quantity which indicates the state and direction of vibrating body is known as?

• A.Amplitude
• B.Phase
• C.Frequency
• D.Wavelength

Which of the following devices works based on the principle of resonance?

• A.Barometer
• B.Tuning Fork
• C.Thermometer
• D.Galvanometer

In which state of matter is the speed of sound the greatest?

• A.Gases
• B.Liquids
• C.Solids
• D.Plasma

The distance between the rest position of the moving particles to the top of a crest or bottom of a trough is termed as?

• A.Wavelength
• B.Frequency
• C.Amplitude
• D.Wave speed

With increase in temperature, the velocity of _?

• A.Gases increases and liquids decreases
• B.Both gases and liquids increase
• C.Both gases and liquids decrease
• D.Gases decreases and liquids increases

Past Paper MCQ

Which of the following mediums cannot transmit sound?

• A.Air
• B.Water
• C.Vacuum
• D.Steel

Which type of wave cannot travel through a vacuum?

• A.Electromagnetic waves
• B.Radio waves
• C.Light waves
• D.Sound waves

What is the frequency range above which sound waves are considered ultrasound?

• A.20,000 hertz
• B.2,000 hertz
• C.200,000 hertz
• D.20 hertz

Sound travels faster in solids as compared to gases because of ?

• A.Solid molecules are packed tightly
• B.Solid molecules are loosely packed
• C.Solid molecules have more kinetic energy
• D.Solid molecules are lighter in weight

A wave has a frequency of 500 Hz and a wavelength of 2 cm. What will be its velocity?

• A.10 m/s
• B.100 m/s
• C.1000 m/s
• D.1 m/s