The sound wave undergoes diffraction behind obstacles.
The reflected sound wave at the fixed end interferes with the incident wave.
The speed of the sound wave changes as it travels through a medium.
The longitudinal movement of air molecules produces pressure fluctuations.
They transport energy.
They are created by vibrating sources.
They do not transfer matters.
They are all transverse waves.
Ability to be refracted
Need for a material medium
Relative directions of oscillation and propagation
Are produced by mechincal vibrations
Are longitudinal wave
Can travel through vacuum
Obey the laws of reflection
Speed of sound in oxygen, speed of sound in mud, speed of sound in water.
Speed of sound in ice, speed of sound in stone, speed of sound in alcohol.
Speed of sound in orange juice, speed of sound in iron, speed of sound in air.
Speed of sound in steam, speed of sound in ink, speed of sound in iron.
1 000 m/s
B is softer than A.
Pitch of A is higher than B.
Frequency of B is higher than A.
A and B has the same speed.
Pitch of sound only
Speed of sound only
Loudness of sound only
All the three above
(1) and (2)
(1) and (3)
(2) and (3)
all the above
1Hz to 2KHz
20Hz to 20KHz
2KHz to 20KHz
100KHz to 200Khz