Sound & Acoustics MCQs with Answers

The separation between two consecutive compressions of the sound wave is called?

• A.Amplitude
• B.Frequency
• C.Wavelength
• D.Time period

The cause of echo is _?

• A.Absorption of sound
• B.Refraction of sound
• C.Diffraction of sound
• D.Reflection of sound

The energy which is created by the vibration of particles is known as?

• A.Heat energy
• B.Sound energy
• C.Light energy
• D.Kinetic energy

What is the frequency range for shortwave radio transmissions?

• A.3 kHz to 30 kHz
• B.5.9 MHz to 26.1 MHz
• C.88 MHz to 108 MHz
• D.300 MHz to 3 GHz

Which category do Broad card and Graham phone fall under in terms of teaching aids?

• A.Visual aids
• B.Audio aids
• C.Audio-visual aids
• D.Activity aids

The wavelength of the radio waves having 90 MHz frequency is?

• A.333 m
• B.33.3 m
• C.0.33 m
• D.3.33 m

The number of cycles in a given amount of time is ?

• A.Time period
• B.Amplitude
• C.Wavelength
• D.Frequency

What is an important example of resonance?

• A.Swing
• B.Pendulum clock
• C.Tuning fork
• D.All of these

Waves having crests and troughs with oscillation (movements) of particles perpendicular to the direction of wave propagation are named as?

• A.Longitudinal Waves
• B.Transverse Waves
• C.Compressional Waves
• D.Surface Waves

Waves which can only travel through a medium are called mechanical waves. Which one of the following is not a mechanical wave?

• A.Sound wave
• B.Water wave
• C.Infra-red wave
• D.Seismic wave