10th Class Physics Unit 13: Sound Solved MCQs (FBISE)
Students looking to secure high marks in their federal board objective papers can practice this 10th class physics chapter 4 mcqs solved fbise resource.
10th Class Physics Chapter 4 MCQs Solved FBISE
Choose the best possible option in the following questions.
(1)
What are the three main parts of the human ear?
A) Outer ear, Middle ear, Inner ear
B) Inner ear, Cochlea, Eardrum
C) Middle ear, Eardrum, Auditory nerve
D) Outer ear, Auditory nerve, Cochlea
Correct option is (a)
=======================================
(2)
Sound produced by piano and violin gives _____ waveform on oscilloscope.
A) Simple
B) Harmonic
C) Complex
D) Symmetric
Correct option is (c)
=======================================
(3)
Which is NOT true for sound?
A) Sound is produced by vibrating body
B) Sound travels due to variation of pressure in air
C) Sound transfer energy along with matter of medium
D) Sound is compressional and longitudinal wave
Correct option is (c)
=======================================
(4)
Sound travels faster in:
A) rubber
B) air
C) water
D) steel
Correct option is (d)
=======================================
(5)
Speed of sound in air is
$$332\;ms^{-1}.$$ What is it speed in vacuum?
$$A)\;Equal\;to\;332\;ms^{-1}\\B)\;Great\;than\;332\;ms^{-1}\\C)\;Less\;than\;332\;ms^{-1}\\D)\;Zero$$
Correct option is (d)
=======================================
Every single problem in this 10th class physics chapter 4 mcqs solved fbise guide directly follows the new National Book Foundation curriculum style.
(6)
The sound travels from water to an iron rod and then into air and back into water. The speed of sound will successively:
A) increase, decrease, increase
B) decrease, increase, decrease
C) increase, increase, increase
D) decrease, decrease, decrease
Correct option is (a)
=======================================
(7)
What will happen to speed of sound, if frequency is doubled? It will become:
A) half
B) double
C) four times
D) remain same
Correct option is (d)
=======================================
(8)
Infrasonic waves have frequency:
A) greater than 20 Hz
B) less than 20 Hz
C) of 20 Hz
D) of 20 k Hz
Correct option is (b)
=======================================
(9)
For echo, the minimum distance of a person from obstacle is:
A) 17 m
B) 34 m
C) 0.1 m
D) Amplitude
Correct option is (a)
=======================================
(10)
The property of waves which is directly related with loudness of sound is:
A) Frequency
B) Wavelength
C) Speed
D) Amplitude
Correct option is (d)
=======================================
(11)
Sound entered in ear is amplified by:
A) Ossicles
B) Cochlea
C) Eardrum
D) Brain
Correct option is (a)
=======================================
(12)
Silent whistle is used to train dog. When trainer blows the whistle, human beings do not hear it but dog do listen. Its possible frequency is:
A) > 20 Hz
B) < 20 Hz
C) < 20000 Hz
D) > 20000 Hz
Correct option is (d)
=======================================
(13)
The pitch of sound depends upon:
A) frequency
B) amplitude
C) quality
D) displacement
Correct option is (a)
=======================================
(14)
Two sound waves having same loudness and pitch can be distinguished by one of the characteristics of sound called:
A) loudness
B) pitch
C) quality
D) intensity
Correct option is (c)
=======================================
(15)
The sensation of sound persists in our brain for about:
A) 10 s
B) 1 s
C) 0.1 s
D) 0.01 s
Correct option is (c)
=======================================
Make sure to bookmark our page to easily revise this 10th class physics chapter 4 mcqs solved fbise layout before your final matric board exams.
More FBISE 10th Class Physics Chapter Wise MCQs
Check! some important links below
