Quality of sound is used to distinguish between
Noise and Music
Two different vibrating bodies
Two notes produced by same vibrating body
All of the above
Sound can travel through
Solid only
Solid, liquid and gas only
Gas only
Gas and vacuum only
The loudness of sound depends on :
Amplitude
Frequency
Phase
Harmonics
What is the vibrating part of the musical instrument Tabla?
Stretched string.
Stretched membrane.
Air column.
None of these.
The pleasing sounds are called
Music.
Noise.
loudness.
Which of the following statements is not a use of ultrasound?
Ultrasonic treatment of tumors in patients suffering from cancer.
Ultrasonic scanning during pregnancy to check the development of baby.
Ultrasonic cleaning to remove coating of tartar from teeth.
Ultrasound for echo location to determine the depth of water.
The number of oscillations per second is called
Frequency.
Amplitude.
Phase.
none of these.
Study the given materials.
I. Glass of water
II. Balloon full of air
III. Iron bar
IV. Vacuum
The sound can travel through
I and II only
I and III only
I, II and III only
All of these
The speed of sound through solids, liquids and gases are .................. , ................ and ................... respectively.
Which of the following information completes the given statement?
Slowest, faster and fastest
Average, fastest and slowest
Slowest, fastest and average
Fastest, slower and slowest
What is the loudness of Normal Conversation?
10 dB.
30 dB.
60 db.
