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Case Based Questions Test: Waves - NEET MCQ


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10 Questions MCQ Test Topic-wise MCQ Tests for NEET - Case Based Questions Test: Waves

Case Based Questions Test: Waves for NEET 2024 is part of Topic-wise MCQ Tests for NEET preparation. The Case Based Questions Test: Waves questions and answers have been prepared according to the NEET exam syllabus.The Case Based Questions Test: Waves MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Case Based Questions Test: Waves below.
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Case Based Questions Test: Waves - Question 1

Attempt All sub parts from each question.

Longitudinal and transverse wave: Longitudinal Waves are defined as waves those are capable of displacing the medium in a direction either in the direction of the waves or opposite. Longitudinal mechanical waves are known as compressional waves. This is because these mechanical waves produce a lot of compression and rarefaction while travelling through medium. These waves are also called as pressure waves as there is an increase and decrease in pressure while travelling. Sound Waves like vibrations, P-Waves created through earthquakes, etc., are some kinds of longitudinal waves. A transverse wave is defined as the wave that moves in the perpendicular direction of the vibration. One of the most important examples of transverse waves includes the waves created by the drum's beating. The membrane of the drum moves perpendicular to the surface. Another example of a transverse wave is light. Transverse waves travels through crests and troughs. Transverse waves are mostly present in solids those have profound elasticity. In some cases, when there is a deformation in the material, the wave is called a shear wave.

Q. Which wave is also known as shear wave?

Detailed Solution for Case Based Questions Test: Waves - Question 1
Transverse waves are mostly present in solids those have profound elasticity. In some cases, when there is a deformation in the material, the wave is called a shear wave.
Case Based Questions Test: Waves - Question 2

Attempt All sub parts from each question.

Longitudinal and transverse wave: Longitudinal Waves are defined as waves those are capable of displacing the medium in a direction either in the direction of the waves or opposite. Longitudinal mechanical waves are known as compressional waves. This is because these mechanical waves produce a lot of compression and rarefaction while travelling through medium. These waves are also called as pressure waves as there is an increase and decrease in pressure while travelling. Sound Waves like vibrations, P-Waves created through earthquakes, etc., are some kinds of longitudinal waves. A transverse wave is defined as the wave that moves in the perpendicular direction of the vibration. One of the most important examples of transverse waves includes the waves created by the drum's beating. The membrane of the drum moves perpendicular to the surface. Another example of a transverse wave is light. Transverse waves travels through crests and troughs. Transverse waves are mostly present in solids those have profound elasticity. In some cases, when there is a deformation in the material, the wave is called a shear wave.

Q. Which wave is also known as pressure wave?

Detailed Solution for Case Based Questions Test: Waves - Question 2
Longitudinal wave are also called as pressure waves as there is an increase and decrease in pressure while traveling.
Case Based Questions Test: Waves - Question 3

Attempt All sub parts from each question.

Longitudinal and transverse wave: Longitudinal Waves are defined as waves those are capable of displacing the medium in a direction either in the direction of the waves or opposite. Longitudinal mechanical waves are known as compressional waves. This is because these mechanical waves produce a lot of compression and rarefaction while travelling through medium. These waves are also called as pressure waves as there is an increase and decrease in pressure while travelling. Sound Waves like vibrations, P-Waves created through earthquakes, etc., are some kinds of longitudinal waves. A transverse wave is defined as the wave that moves in the perpendicular direction of the vibration. One of the most important examples of transverse waves includes the waves created by the drum's beating. The membrane of the drum moves perpendicular to the surface. Another example of a transverse wave is light. Transverse waves travels through crests and troughs. Transverse waves are mostly present in solids those have profound elasticity. In some cases, when there is a deformation in the material, the wave is called a shear wave.

Q. Which wave produces compressions and rarefactions in the medium?

Detailed Solution for Case Based Questions Test: Waves - Question 3
Longitudinal mechanical waves produce a lot of compression and rarefaction while travelling through medium. Hence they are also known as compressional waves.
Case Based Questions Test: Waves - Question 4

Attempt All sub parts from each question.

Longitudinal and transverse wave: Longitudinal Waves are defined as waves those are capable of displacing the medium in a direction either in the direction of the waves or opposite. Longitudinal mechanical waves are known as compressional waves. This is because these mechanical waves produce a lot of compression and rarefaction while travelling through medium. These waves are also called as pressure waves as there is an increase and decrease in pressure while travelling. Sound Waves like vibrations, P-Waves created through earthquakes, etc., are some kinds of longitudinal waves. A transverse wave is defined as the wave that moves in the perpendicular direction of the vibration. One of the most important examples of transverse waves includes the waves created by the drum's beating. The membrane of the drum moves perpendicular to the surface. Another example of a transverse wave is light. Transverse waves travels through crests and troughs. Transverse waves are mostly present in solids those have profound elasticity. In some cases, when there is a deformation in the material, the wave is called a shear wave.

Q. Beating of drums produces

Detailed Solution for Case Based Questions Test: Waves - Question 4
One of the most important examples of transverse waves includes the waves created by the drum's beating. The membrane of the drum moves perpendicular to the surface.
Case Based Questions Test: Waves - Question 5

Attempt All sub parts from each question.

Longitudinal and transverse wave: Longitudinal Waves are defined as waves those are capable of displacing the medium in a direction either in the direction of the waves or opposite. Longitudinal mechanical waves are known as compressional waves. This is because these mechanical waves produce a lot of compression and rarefaction while travelling through medium. These waves are also called as pressure waves as there is an increase and decrease in pressure while travelling. Sound Waves like vibrations, P-Waves created through earthquakes, etc., are some kinds of longitudinal waves. A transverse wave is defined as the wave that moves in the perpendicular direction of the vibration. One of the most important examples of transverse waves includes the waves created by the drum's beating. The membrane of the drum moves perpendicular to the surface. Another example of a transverse wave is light. Transverse waves travels through crests and troughs. Transverse waves are mostly present in solids those have profound elasticity. In some cases, when there is a deformation in the material, the wave is called a shear wave.

Q. Which wave is also known as compressional wave?

Detailed Solution for Case Based Questions Test: Waves - Question 5
Longitudinal mechanical waves are known as compressional waves. This is because these mechanical waves produce a lot of compression and rarefaction while travelling through medium.
Case Based Questions Test: Waves - Question 6

Attempt All sub parts from each question.

Tuning a piano wire: When we hear two frequencies which are very close to each other but not exactly equal then distinct waxing and waning of the intensity of the sound is heard. These are known as beats. The beat frequency is equal to the absolute value of the difference in frequency of the two waves. To tune a piano, a musician takes help of beat frequency. He plucks the string and tap a tuning fork at the same time. If the two sound sources— the piano string and the tuning fork, do not produce identical frequency then the musician hears detectable beats. Musician will then adjust the tension of the piano string and repeat the process until the beats are no longer be heard. Tension of the wire changes the frequency of the wire.

As the piano string becomes more in tune with the tuning fork, the beat frequency reduces and approaches 0 Hz. When beats are no longer heard, the piano string is tuned to the tuning fork; i.e. they play the same frequency. The process allows the musician to match the strings' frequencies to the frequencies of a standardized set of tuning forks.

Q. A musician while tuning a piano with a standard tuning fork of frequency 256 Hz, hears beats of 5 Hz. What may be the frequency of the piano?

Detailed Solution for Case Based Questions Test: Waves - Question 6
The beat frequency is equal to the absolute value of the difference in frequency of the two waves. So, piano wire frequency is (256 + 5) Hz or (256 – 5)Hz
Case Based Questions Test: Waves - Question 7

Attempt All sub parts from each question.

Tuning a piano wire: When we hear two frequencies which are very close to each other but not exactly equal then distinct waxing and waning of the intensity of the sound is heard. These are known as beats. The beat frequency is equal to the absolute value of the difference in frequency of the two waves. To tune a piano, a musician takes help of beat frequency. He plucks the string and tap a tuning fork at the same time. If the two sound sources— the piano string and the tuning fork, do not produce identical frequency then the musician hears detectable beats. Musician will then adjust the tension of the piano string and repeat the process until the beats are no longer be heard. Tension of the wire changes the frequency of the wire.

As the piano string becomes more in tune with the tuning fork, the beat frequency reduces and approaches 0 Hz. When beats are no longer heard, the piano string is tuned to the tuning fork; i.e. they play the same frequency. The process allows the musician to match the strings' frequencies to the frequencies of a standardized set of tuning forks.

Q. A musician while tuning a piano with a standard tuning fork of frequency 256 Hz, initially heard beats of 5 Hz. He then increased the tension and found that the beat frequency has reduced to 2Hz. What he should do to achieve tuning?

Detailed Solution for Case Based Questions Test: Waves - Question 7

Increase in tension has increased the frequency of the piano wire and hence the difference of frequency (beat frequency) has reduced. So, the tension is to be further increased to make the beat frequency 0.

Case Based Questions Test: Waves - Question 8

Attempt All sub parts from each question.

Tuning a piano wire: When we hear two frequencies which are very close to each other but not exactly equal then distinct waxing and waning of the intensity of the sound is heard. These are known as beats. The beat frequency is equal to the absolute value of the difference in frequency of the two waves. To tune a piano, a musician takes help of beat frequency. He plucks the string and tap a tuning fork at the same time. If the two sound sources— the piano string and the tuning fork, do not produce identical frequency then the musician hears detectable beats. Musician will then adjust the tension of the piano string and repeat the process until the beats are no longer be heard. Tension of the wire changes the frequency of the wire.

As the piano string becomes more in tune with the tuning fork, the beat frequency reduces and approaches 0 Hz. When beats are no longer heard, the piano string is tuned to the tuning fork; i.e. they play the same frequency. The process allows the musician to match the strings' frequencies to the frequencies of a standardized set of tuning forks.

Q. As tension of a wire of fixed length increases, the frequency emitted by it

Detailed Solution for Case Based Questions Test: Waves - Question 8
Increasing the tension on a string increases the speed of a wave, which increases the frequency (for a given length). (Smaller lengths of string result in shorter wavelength and thus higher frequency.)
Case Based Questions Test: Waves - Question 9

Attempt All sub parts from each question.

Tuning a piano wire: When we hear two frequencies which are very close to each other but not exactly equal then distinct waxing and waning of the intensity of the sound is heard. These are known as beats. The beat frequency is equal to the absolute value of the difference in frequency of the two waves. To tune a piano, a musician takes help of beat frequency. He plucks the string and tap a tuning fork at the same time. If the two sound sources— the piano string and the tuning fork, do not produce identical frequency then the musician hears detectable beats. Musician will then adjust the tension of the piano string and repeat the process until the beats are no longer be heard. Tension of the wire changes the frequency of the wire.

As the piano string becomes more in tune with the tuning fork, the beat frequency reduces and approaches 0 Hz. When beats are no longer heard, the piano string is tuned to the tuning fork; i.e. they play the same frequency. The process allows the musician to match the strings' frequencies to the frequencies of a standardized set of tuning forks.

Q. A musician while tuning a piano with a standard tuning fork of frequency 256 Hz, initially heard beats of 5 Hz. He then increased the tension and found that the beat disappears. What was the initial frequency of the piano wire?

Detailed Solution for Case Based Questions Test: Waves - Question 9
Beat frequency is the difference in frequencies. As increasing frequency of piano wire (by increasing the tension) has reduced the beat frequency to 0, then the initial frequency of the piano wire was 256 – 5 = 251 Hz.
Case Based Questions Test: Waves - Question 10

Attempt All sub parts from each question.

Tuning a piano wire: When we hear two frequencies which are very close to each other but not exactly equal then distinct waxing and waning of the intensity of the sound is heard. These are known as beats. The beat frequency is equal to the absolute value of the difference in frequency of the two waves. To tune a piano, a musician takes help of beat frequency. He plucks the string and tap a tuning fork at the same time. If the two sound sources— the piano string and the tuning fork, do not produce identical frequency then the musician hears detectable beats. Musician will then adjust the tension of the piano string and repeat the process until the beats are no longer be heard. Tension of the wire changes the frequency of the wire.

As the piano string becomes more in tune with the tuning fork, the beat frequency reduces and approaches 0 Hz. When beats are no longer heard, the piano string is tuned to the tuning fork; i.e. they play the same frequency. The process allows the musician to match the strings' frequencies to the frequencies of a standardized set of tuning forks.

Q. A musician while tuning a piano with a standard tuning fork of frequency 256 Hz, hears beats of 5 Hz. What he should do to achieve the tuning?

Detailed Solution for Case Based Questions Test: Waves - Question 10
Since tension of the wire changes the frequency of the wire, musician will adjust the tension of the piano string to change the frequency and repeat the process until the beats are no longer be heard.
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