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Free download in PDF Sound Objective Type Questions & Answers for competitive exams. These Sound Objective Questions with Answers are important for competitive exams like JEE, AIIMS, NEET etc.
(21)
The voice box is called:
[A]
Stomach
[B]
Heart
[C]
Larynx
[D]
Mouth
(22)
Voice box or larynx of human process
[A]
Sound
[B]
Loudness
[C]
Wind
[D]
None
(23)
What is the speed of sound in air?
[A]
330 m/s
[B]
332 m/s
[C]
334 m/s
[D]
336 m/s
(24)
What is the unit of loudness?
[A]
Bel
[B]
Phon
[C]
Decibel
[D]
All of the above
(25)
Compressions are formed where air pressure is
[A]
higher
[B]
lower
[C]
normal
[D]
zero
(26)
Sound can be transmitted through a medium which
[A]
contains charge
[B]
has higher density than air
[C]
contains molecules that vibrate
[D]
contains molecules that collide
Answer: contains molecules that vibrate
(27)
A good example of sound waves is
[A]
Rope
[B]
Slinky spring
[C]
Elastic band
[D]
Elastic rod
(28)
Name the characteristic of the sound which distinguishes a sharp sound from a grave or dull sound?
[A]
Intensity
[B]
Echo
[C]
Pitch
[D]
Resonance
(29)
Which of the following is/ are not applications of Ultrasonic Waves?
(a) For measuring the depth of Sea.
(b) In sterilizing of a liquid.
(c) In Ultrasonography
(d) In sterilizing a needle.
Options are:
[A]
Both (a) and (b) Only (b)
[B]
Only (d)
[C]
Both (c) and (d)
[D]
Only (b)
(30)
Sensation of sound persists in our brain for about
[A]
0.001s
[B]
0.2s
[C]
0.1s
[D]
10s
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