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

1 / 20

Intensity of faintest sound is

2 / 20

Pitch of sound depends on

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

4 / 20

Frequency of silent whistle lies between

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

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Intensity of whispering is ______

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Voice of Child is _____

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

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Loudness of sound depends on

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Sound is ___________ Wave

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

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Intensity is a _____ quantity.

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The study of sound 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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1 bell is equal to

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Sound is produced by

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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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Practice MCQs Test No 2

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Class 10 Physics

Chapter 11

Practice MCQs Test No 2

1 / 20

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

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The level of noise recommended in most of countries is:

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Such sounds which are unpleasant to our ears are called:

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Such sound which are pleasant to our ears are called _____________

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

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The sensation of sound persists in our brain for about

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

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

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Bats can hear frequencies up to ______

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

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The speed of sound varies with

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

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Echo of sound is:

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

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

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The speed of sound in air was first accurately measured in

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We hear sound produce by musical instrument such as

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Multiple reflections are called

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Mice can hear frequencies up to:

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Practice MCQs Test No 3

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11

Class 10 Physics

Chapter 11

Practice MCQs Test No 3

1 / 19

Noise corresponds to _____________ vibrations.

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Ultrasound is the frequency of sound higher than

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

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By which waves small cracks can appear:

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Noise has negative effects on human health it cause except

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Audible frequency range is

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

8 / 19

Bats can hear frequency up to

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

10 / 19

By ultrasonic waves ______ are destroyed.

11 / 19

Which are the acoustic protection except

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Ultrasonics are used to measure the depth of water by ______

13 / 19

Which bird fly easily between wires in the black room?

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

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Infrasonic is the frequency of sound less than

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Sound waves with frequency less than 20Hz are called:

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

18 / 19

Old people cannot hear sound even above

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

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