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Physics 10 Chapter 11 - Sound - 2
1.
Why doctors use stethoscopes?
a) To watch internal organs of body of the patients
b) To watch light waves
c) To hear sound
d) To explore internal organs
2.
How does sound travel from its source to your ear?
a) By changes in air pressure
b) By infrared waves
c) By vibrations in wires or strings
d) By electromagnetic wave
3.
In school laboratory, we use an instrument to produce particular sound waves. What is this instrument called?
a) Tuning fork
b) Oscillator
c) Ripple tank
d) Endoscope
4.
Where is the diaphragm located in the stethoscope?
a) Chest piece
b) Listener piece
c) Hollow tubes
d) None of these
5.
If we strike the tuning fork against rubber hammer, the tuning fork will begin to.................?
a) Move randomly
b) Vibrate
c) Circulate
d) Rotate
6.
If we place the vibrating tuning fork ij the glass of water, what will we observe?
a) A splash of water
b) A light in the water
c) Bad smelling water
d) Heated water
7.
What does sound require for their propagation?
a) Material medium
b) Space
c) None of these
d) Vacuum
8.
What is the nature of light waves?
a) Mechanical waves
b) Longitudinal waves
c) Transverse waves
d) Electromagnetic waves
9.
What are the strips of tuning fork called?
a) Sphinx
b) Sponges
c) Prongs
d) Tuner
10.
With the help of how many wires electric bell is suspended in the bell jar?
a) Two
b) Five
c) Three
d) Four
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