One of the following can hear infrasound. Which one?
Dog
Bat
Rhinoceros
Humans
Before playing the orchestra in a musical concert, a sitarist tries to adjust the tension and pluck the strings suitably. By doing so he is adjusting:
Intensity of sound only
Amplitude of sound only
Frequency of the sitar string with the frequency of other musical instruments
loudness of sound
The pitch of sound depends on:
Frequency
Amplitude
Both of these
None of these
A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through:
water
wax
vacuum
empty vessel
Large amplitude of sound vibrations will produce:
Loud sound
Meak sound
Slow sound
Shreak
Choose the correct answer. Sound can travel through:
Gases only
Solids only
Liquids only
Solids, liquids and gases
The speed of highly penetrating ultrasonic waves is:
lower than those of audible sound waves
higher than those of audible sound waves
much higher than those of audible sound waves
same as those of audible sound waves
The frequencies of four sound waves are given below. Which of these sound waves can be used to measure the depth of sea?
15,000 Hz
100 kHz
50 kHz
10,000 Hz
To an fro motion of an object is called
Waves
Vibration
All of the above
The maximum speed of vibrations which produce audible sound will be in:
dry air
sea water
ground glass
human blood