In this post, we have prepared 3 MCQs tests of Federal Board Physics 10 Unit 11 MCQs Tests. For more Class 10 Physics MCQs Tests visit this page.


Physics 10 Unit 11 MCQs Tests


Practice MCQs Test No 1

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Class 10 Physics

Chapter 11

Practice MCQs Test No 1

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Intensity of faintest sound is

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The amplitude of 100 dB sound is:

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The intensity of sound depends on the _________ of sound.

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Loudness of sound depends on

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Intensity of whispering is ______

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Intensity is a _____ quantity.

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1 bell is equal to

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The loudness of sound is directly proportional to logarithm of intensity, this law is called ________

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Pitch of sound depends on

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Distance between two consecutive compressions and rarefactions is the _____________ of sound wave.

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Characteristic by which we can distinguish between two sounds of same loudness and pitch is called

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Intensity of loudest audible sound is

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Sound can travel only in presence of

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Frequency of silent whistle lies between

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Voice of Child is _____

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The study of sound is called

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_________ is the characteristic of sound by which we can distinguish between a shrill and a grave sound.

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Sound is ___________ Wave

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Sound is produced by

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By using a/an __________ we can see sound wave.

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Practice MCQs Test No 2

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5

Class 10 Physics

Chapter 11

Practice MCQs Test No 2

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For hearing distinct echoes, the minimum distance of obstacle from source of source of sound must be

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Mice can hear frequencies up to:

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Rarefactions are places where air is slightly _____________ than the surrounding air.

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The speed of sound in air was first accurately measured in

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The speed of sound in solid is _____ than liquid and air.

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We hear sound produce by musical instrument such as

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Such sounds which are unpleasant to our ears are called:

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Multiple reflections are called

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The level of noise recommended in most of countries is:

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Such sound which are pleasant to our ears are called _____________

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The method used to absorb undesirable sound by soft and porous surface is called:

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Bats can hear frequencies up to ______

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The speed of sound in solid is about _____ times that in gases.

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Echo of sound is:

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The sensation of sound persists in our brain for about

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The speed of sound varies with

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Compressions are places where air is slightly ____________ than the surrounding air.

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For a normal person audible frequency range for sound wave lie between

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The speed of sound in air at 2 atm pressure and at room temperature (21°C) is

20 / 20

_______ corresponds to irregular and sudden vibrations produced by some sound.

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Practice MCQs Test No 3

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4

Class 10 Physics

Chapter 11

Practice MCQs Test No 3

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______  waves carry more energy and higher frequency than sound waves.

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By which waves small cracks can appear:

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Old people cannot hear sound even above

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Bats can hear frequency up to

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The range of the frequency which human, ear can hear is called

6 / 19

Which are the acoustic protection except

7 / 19

When the frequency of a sound wave is increased which of following decreases?

8 / 19

Ultrasonics are used to locate under-water depth. This technique is called:

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Noise corresponds to _____________ vibrations.

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Audible frequency range is

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Sound waves with frequency less than 20Hz are called:

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By ultrasonic waves ______ are destroyed.

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Infrasonic is the frequency of sound less than

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Ultrasound is the frequency of sound higher than

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Noise has negative effects on human health it cause except

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According to wave equation v = fλ the wavelength of ultra sonic waves are:

17 / 19

Ultrasonics are used to measure the depth of water by ______

18 / 19

Powerful ultrasound is now being used to remove blood clots from:

19 / 19

Which bird fly easily between wires in the black room?

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