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Physics 10 Chapter 11 - Sound - 9
1.
Upon which of the following, pitch of a sound depends on?
a) Distance from the vibrating body
b) Frequency of vibrating body
c) Amplitude of vibrating body
d) Area of vibrating body
2.
If frequency of a vibrating body increases, then what will be the effect on pitch of sound waves?
a) Remains same
b) Decreases
c) Increases
d) Always decreases
3.
If frequency of sound increases, then which of the following increases?
a) Quality
b) Intensity
c) Loudness
d) Pitch
4.
If frequency of a vibrating body decreases, then what will be the effect on pitch of sound waves?
a) Decreases
b) Remains same
c) Always decreases
d) Increases
5.
If frequency of sound decreases, then which of the following decreases?
a) Quality
b) Loudness
c) Pitch
d) Intensity
6.
Which of the following have voice of high pitch?
a) Children
b) Women
c) Both b and c
d) Men
7.
How can we distinguish between the notes of piano and flute?
a) Due to intensity
b) Due to pitch
c) Due to loudness
d) Due to quality
8.
Thin-walled glass goblets can vibrate when hit by sound waves. What is this phenomena called?
a) Endoscopy
b) Therapy
c) Conductivity
d) Resonance
9.
Between which the frequencies of silent whistle used by peoples to call dog lies?
a) 30,000 Hz - 35,000 Hz
b) 20,000 Hz - 25,000 Hz
c) 15,000 Hz - 20,000 Hz
d) 25,000 Hz - 30,000 Hz
10.
Between which the frequencies of silent whistle used by peoples to call dog lies?
a) 20 kHz - 25 kHz
b) 30 kHz - 35 kHz
c) 25 kHz - 30 kHz
d) 15 kHz - 20 kHz
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