Skip to main content

SOUND & SOUND WAVES PROPERTIES IN PHYSICS SOLVED MCQs

Sound Solved MCQs

1.   

      What is a wave?

a.      A particle in motion

b.     A disturbance that travels through a medium

c.      A stationary object

d.     A type of electromagnetic radiation

 

2.     Which of the following waves requires a medium to travel through?

a.      Radio waves

b.     Light waves

c.      Sound waves

d.     X-rays

 

3.     What is the amplitude of a wave?

a.      The distance between two consecutive troughs

b.     The distance between two consecutive crests

c.      The maximum displacement of particles from their equilibrium position

d.     The speed of the wave

 

4.     The distance between two consecutive crests of a wave is called:

a.     Wavelength

b.     Frequency

c.      Amplitude

d.     Period

 

5.     Which of the following properties of a wave determines its pitch in the case of sound waves?

a.      Amplitude

b.     Frequency

c.      Wavelength

d.     Speed

 

6.     The time it takes for one complete wavelength to pass a point is called:

a.      Frequency

b.     Wavelength

c.      Period

d.     Amplitude

 

7.     In which direction do transverse waves vibrate?

a.      Parallel to the direction of wave propagation

b.     Perpendicular to the direction of wave propagation

c.      At an angle of 45 degrees to the direction of wave propagation

d.     In a circular motion

 

8.     Which type of wave can propagate in a vacuum?

a.      Sound waves

b.     Transverse waves

c.      Longitudinal waves

d.     Electromagnetic waves

 

9.     When a wave undergoes reflection, what property remains unchanged?

a.      Wavelength

b.     Amplitude

c.      Frequency

d.     Speed

 

10.  Diffraction refers to the wave property of:

a.      Changing direction when passing through a boundary between two media

b.     Bouncing off a surface at the same angle it arrives

c.      Spreading out when passing through a narrow opening or around an obstacle

d.     Constructive and destructive interference

 

11.  The number of complete oscillations or cycles of a wave that occur in one second is called:

a.      Amplitude

b.     Wavelength

c.      Frequency

d.     Velocity

 

12.  The phenomenon of the bending of waves around obstacles or edges is called:

a.      Reflection

b.     Diffraction

c.      Refraction

d.     Interference

 

13.  The interference pattern observed when two identical waves overlap in phase is called:

a.      Destructive interference

b.     Constructive interference

c.      Refraction

d.     Diffraction

 

14.  Which type of wave requires a medium (substance) to travel through?

a.      Transverse wave

b.     Longitudinal wave

c.      Electromagnetic wave

d.     Standing wave

 

15.  The speed of a wave is determined by its:

a.      Amplitude

b.     Wavelength

c.      Frequency

d.     Energy

 

16.  In a transverse wave, the particles of the medium move:

a.      In the direction of the wave

b.     Opposite to the direction of the wave

c.      In random directions

d.     In a circular motion

 

17.  The maximum displacement of a particle from its equilibrium position in a wave is known as:

a.      Frequency

b.     Wavelength

c.      Amplitude

d.     Velocity

 

18.  The speed of a wave is given by:

a.     Speed = Frequency × Wavelength

b.     Speed = Amplitude × Wavelength

c.      Speed = Frequency ÷ Wavelength

d.     Speed = Amplitude ÷ Frequency

 

19.  Which of the following statements about longitudinal waves is true?

a.      The particles oscillate perpendicular to the direction of wave propagation.

b.     Longitudinal waves cannot travel through fluids.

c.      Sound waves are an example of longitudinal waves.

d.     Longitudinal waves require a vacuum for propagation.

 

20.  When two waves meet and their amplitudes add together, the resulting phenomenon is called:

a.      Diffraction

b.     Interference

c.      Refraction

d.     Dispersion

 

21.  The change in the apparent frequency of a wave due to the relative motion between the source and the observer is known as:

a.      Reflection

b.     Diffraction

c.      Doppler effect

d.     Refraction

 

22.  Which type of wave is characterized by the particles of the medium moving perpendicular to the direction of wave propagation?

a.     Transverse wave

b.     Longitudinal wave

c.      Standing wave

d.     Surface wave

 

23.  When a wave travels from one medium to another and its speed changes, what phenomenon occurs?

a.      Reflection

b.     Diffraction

c.      Interference

d.     Refraction

 

24.  What is the relationship between the frequency (f) and the period (T) of a wave?

a.      f = T

b.     f = 1/T

c.      f = 2T

d.     f = T2

 

25.  If the frequency of a wave doubles while its wavelength remains constant, what happens to its speed?

a.      It doubles

b.     It halves

c.      It remains the same

d.     It quadruples

 

26.  A wave has a frequency of 200 Hz and a wavelength of 2 meters. What is the wave's speed?

a.      100 m/s

b.     200 m/s

c.      400 m/s

d.     800 m/s

 

27.  A guitar string has a fundamental frequency of 440 Hz. If the speed of the wave on the string is 220 m/s, what is the wavelength of the fundamental mode?

a.     0.5 m

b.     1 m

c.      2 m

d.     4 m

 

28.  What is sound?

a.      A form of light

b.     A type of energy

c.      A type of heat

d.     A mechanical wave

 

29.  What is the speed of sound in air at room temperature (approximately 20°C)?

a.     343 meters per second

b.     300,000,000 meters per second

c.      1500 meters per second

d.     30 meters per second

 

30.  Which of the following mediums would sound travel the fastest through?

a.      Water

b.     Steel

c.      Air

d.     Vacuum

 

31.  The frequency of a sound wave determines its:

a.      Loudness

b.     Amplitude

c.      Pitch

d.     Speed

32.  What is the unit of measurement for amplitude?

a.      Hertz

b.     Decibel

c.      Meter

d.     Watt

 

33.  In which state of matter does sound travel the fastest?

a.     Solid

b.     Liquid

c.      Gas

d.     Sound travels at the same speed in all states of matter

 

34.  What is an echo?

a.      A type of interference pattern

b.     A rarefaction of sound waves

c.      A reflection of sound waves

d.     A type of diffraction

 

35.  What is the range of human hearing in terms of frequency?

a.      0.1 Hz to 100 Hz

b.     20 Hz to 20,000 Hz

c.      1 kHz to 1 MHz

d.     10 Hz to 100,000 Hz

 

36.  What is the primary mode of energy transfer in sound propagation?

a.      Conduction

b.     Convection

c.      Radiation

d.     Diffraction

 

37.  The speed of sound in a medium is most closely related to:

a.      Density of the medium

b.     Temperature of the medium

c.      Pressure of the medium

d.     Viscosity of the medium         

 

38.  When sound waves travel from air to water, what happens to their speed?

a.      It decreases

b.     It increases

c.      It remains the same

d.     It depends on the frequency

 

39.  The lowest frequency of vibration of a stringed instrument is known as its:

a.      Overtone

b.     Harmonic

c.      Fundamental frequency

d.     Resonant frequency

 

40.  The quality of sound that distinguishes two sounds of the same pitch and loudness is called:

a.      Frequency

b.     Amplitude

c.      Timbre

d.     Wavelength

 

41.  When a sound wave reflects from a surface, the angle of incidence is equal to the angle of:

a.      Absorption

b.     Diffraction

c.      Reflection

d.     Refraction

 

42.  Which part of the human ear amplifies sound vibrations and transmits them to the inner ear?

a.      Eardrum

b.     Cochlea

c.      Auditory nerve

d.     Ossicles

 

43.  The unit of measurement for sound intensity is the:

a.     Decibel (dB)

b.     Hertz (Hz)

c.      Watt (W)

d.     Joule (J)

 

44.  Which part of the ear is responsible for transmitting sound vibrations to the inner ear?

a.     Eardrum (tympanic membrane)

b.     Cochlea

c.      Auditory nerve

d.     Pinna

 

45.  Infrasound refers to sound waves with frequencies:

a.      Above the audible range

b.     Below the audible range

c.      In the ultrasonic range

d.     Exactly at the audible range

 

46.  Which material would be the best absorber of sound waves?

a.      Smooth, hard surface

b.     Rough, soft surface

c.      Transparent surface

d.     Reflective surface

 

47.  A tuning fork vibrates with a frequency of 256 Hz. If the speed of sound is 340 m/s, what is the wavelength of the sound wave produced by the tuning fork?

a.      0.85 m

b.     1.33 m

c.      0.66 m

d.     0.42 m

 

48.  Two sound waves of frequencies 300 Hz and 500 Hz respectively, have the same wavelength. If the speed of sound is 340 m/s, what is the wavelength?

a.      0.68 m

b.     0.34 m

c.      1.13 m

d.     0.905 m

 

49.  A sound wave travels in air with a frequency of 500 Hz. What is the wavelength of this sound wave in air? (Speed of sound in air is approximately 343 m/s.)

a.     0.686 m

b.     0.686 cm

c.      0.343 m

d.     1.5 m

 

50.  A tuning fork produces a sound wave with a frequency of 440 Hz. What is the wavelength of the sound wave in air if the speed of sound is 340 m/s?

a.     0.77 m

b.     0.15 m

c.      0.23 m

d.     1.54 m

 

51.  A sound wave has a wavelength of 0.2 m and a frequency of 800 Hz. What is the speed of the wave?

a.      400 m/s

b.     160 m/s

c.      1600 m/s

d.     0.25 m/s

 

52.  Two sound waves have frequencies of 300 Hz and 450 Hz. What is the beat frequency?

a.     150 Hz

b.     750 Hz

c.      1500 Hz

d.     900 Hz

 

53.  A sound wave travels from air into water. If the frequency of the wave remains constant, what will change?

a.     The speed of the wave

b.     The amplitude of the wave

c.      The wavelength of the wave

d.     The energy of the wave

 

54.  The superposition of two or more waves can result in a new wave with:

a.      Lower frequency

b.     Higher amplitude

c.      Smaller wavelength

d.     All of the above

 

55.  Two sound waves, A and B, have the same frequency but different amplitudes. The wave with the higher amplitude will have:

a.      Higher pitch

b.     Lower pitch

c.      Louder volume

d.     Softer volume

 

56.  The fundamental frequency of a closed pipe that is 50 cm long is:

a.      85.7 Hz

b.     171.4 Hz

c.      342.8 Hz

d.     428.5 Hz

 

57.  If the amplitude of a sound wave is doubled, the intensity of the sound will:

a.      Double

b.     Quadruple

c.      Halve

d.     Remain unchanged

 

58.  Two sound waves, one with a frequency of 300 Hz and another with a frequency of 500 Hz, interfere with each other. What is the beat frequency?

a.     100 Hz

b.     200 Hz

c.      300 Hz

d.     500 Hz

 

59.  The intensity of a sound wave is inversely proportional to the square of the distance from the source. If the intensity is measured as 40 W/m² at a distance of 5 meters, what will be the intensity at a distance of 10 meters from the source?

a.      10 W/m²

b.     20 W/m²

c.      40 W/m²

d.     80 W/m²

 

60. The Doppler effect is applicable to which type of waves?

a) Only sound waves in air.

b) Only light waves in vacuum.

c) Both sound and light waves.

d) Only electromagnetic waves.

Labels:
Location: Larkana, Sindh, Pakistan

Comments

Post a Comment

Most Read Blogs

Single National Curriculum (SNC): Its Pros & Cons

Single National Curriculum 2020  Background Pakistan is a multi-lingual, multi-cultural, and multi-ethnic country where around 74 different languages are spoken. Out of these 74 different languages, 66 languages are indigenous while the remaining 8 are non-indigenous. Urdu is the national language while English is the official language of Pakistan.  Similarly, Pakistan is the thick and second-largest Muslim-populated country in the world. Approximately 96.5% (≈210 million) people are Muslims, out of which around 85-90% are Sunni and the remaining are the Shia sect Muslims.  These two major sects are further subdivided into different groups on the basis of their particular schools of the so-called Islam ic law. On the other hand Pakistani nation is divided on the basis of political parties, ethnicity, sectarianism, culture, customs, traditions, rituals, socio-economics, and educational differences.  The current government has therefore developed and devised Single N...
5 comments
Read more

School, Community, and Teacher (B.Ed Honours Course)

School, Community, & Teacher  (SCT) in the Context of Teacher Education (B.Ed Honours Course) Background The triad of school, community, and teacher (SCT) forms a critical intersection within the educational landscape, creating an integrated ecosystem essential for fostering a healthy and sustainable teaching and learning environment . In the realm of teacher education, the terms school, teacher, and community carry multifaceted meanings that vary depending on contextual factors. To fully comprehend the overarching goals and objectives of teacher education, it is imperative to explore the synergies and intersections inherent in this SCT framework. In this discussion, we will examine each component of the SCT triad in detail, while also considering related concepts that enrich our understanding of this complex interplay. By unpacking these terms, we aim to illuminate their significance and the ways in which they collectively contribute to a robust educational experience. The sch...
Post a Comment
Read more

Definition and Scope of Statistics (Quantitative Reasoning Course)

Quantitative Reasoning Course for BS Honours Level Students  Definition and Scope of Statistics Statistics is the branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organisation of data. It provides tools and methods to make sense of numerical information, identify patterns, draw inferences, and make informed decisions under uncertainty. The scope of statistics is broad and interdisciplinary: Descriptive Statistics : Summarises and describes the features of a dataset, such as calculating means, medians, or creating charts to visualise data. Inferential Statistics : Uses sample data to make generalisations or predictions about a larger population, often involving hypothesis testing, confidence intervals, and regression analysis. Applied Fields : Extends to economics (e.g., forecasting trends), biology (e.g., clinical trials), social sciences (e.g., surveys), engineering (e.g., quality control), and data science (e.g., machine learning m...
Post a Comment
Read more

Dilema of Democracy & Political Leadership Crisis in Pakistan

Dilemma of Democracy & Political Leadership Crisis in Pakistan Overview Since mid 20th century,  Democracy is being considered the most accomplished process and a form of government where only people’s representatives have the right and authority to run the affairs of the state including forming certain constitutional rules and regulations.  Through democracy, people choose their representatives following a well-defined system of voting. The elected representatives then govern the affairs of the state on behalf of their people for a certain period of time (usually 4 to 5 years).  These representatives actually ensure the authority and rule of law for their people in the larger interests of any nation, state, or country. On the other hand, they are also held accountable and responsible for their actions and exercising of the powers within certain limitations as defined in the constitution or legislated through parliament.  Although Pakistan is a pure democratic...
Post a Comment
Read more

Quantitative Reasoning: Statistics and its Relevance in the Context of BS English/Education Course

Introduction to Quantitative Reasoning Course   Quantitative Reasoning (QR) is an ability and an academic skill to use mathematical concepts and procedures. QR often involves interpretation of empirical and numerical data, identification of patterns, flow charts, geometrical shapes, and diagrams for identifying real life problems including offering viable solutions.  QR requires logical reasoning and critical thinking to analyse the real life issues and making informed decisions. Learners often require to have some basic knowledge about statistics numeracy, quantitative values, ratio as well as descriptive and inferential statistical analyses. Hence, in order to have reasonable grasp on QR, learners require to have the basic knowledge about Statistics. In simple words, Statistics plays a very pivotal role in understanding Quantitative Reasoning. What is Statistics? Statistics is one of the Branches of Applied Mathematics or  science of collecting, organising, analysing,...
Post a Comment
Read more

Quantitative Reasoning Statistical Basics

Measures of Central Tendency Measures of central tendency are the specific statistical values which describe the typical values or central position of a dataset. The three most common single statistical values include Mean, Median and Mode.  Arithmetic Mean : Average of all values (sum divided by count). Geometric Mean : nth root of the product of values (used for growth rates). Harmonic Mean : The Reciprocal of the average of reciprocals (used for rates like speed). Median : Middle value when data is ordered. Quartiles : Values dividing data into four equal parts (Q1=25th, Q2=50th=median, Q3=75th percentile). Mode : Most frequent value. Measures of Dispersion Range : Difference between maximum and minimum values. Quartile Deviation : Half the interquartile range (Q3 - Q1)/2. Mean Deviation : Average absolute deviation from the mean. Variance : Average squared deviation from the mean. Standard Deviation : Square root of variance (spread in original units). Coefficient of Varia...
Post a Comment
Read more

AFGHANISTAN CRISES: WHERE DOES PAKISTAN STAND?

Afghanistan Crises and Pakistan  Background According to history, Afghanistan has remained a war zone and a plan to invade central and south Asia for a long time. All of the invaders' troops entered South Asia through Afghanistan, from the Aryans to the Mughals. Afghanistan was the target of two major invasions in recent history. The former Soviet Union (USSR) launched its first invasion in December 1979, which lasted until 1989 and culminated in the dissolution of the Soviet Union into a number of distinct states. However, a significant portion of the formal USSR's territory, now known as the Russian Federation, is still there. As a result of the so-called September 11, 2001 attacks on the World Trade Center in New York, the United States of America (USA) and its NATO (North Atlantic Treaty Organization) allies, including Great Britain, launched the second invasion in 2001. Al-Qaeda's leader, Usama Bin Ladin, was allegedly blamed for the 9/11 attacks and claims that Al-Qa...
Post a Comment
Read more

SWOT Analysis within the Context of Education

 SWOT Analysis in Education for Curriculum Development, Classroom Management, and Planning Introduction   It was the Stanford Research Institute (SRI) which coined the term SWOT Analysis during the 1960s. Initially, the term was used for business management consultancy but later on, researchers and professionals started using it in different fields mainly for planning purposes. SWOT  analysis is a strategic planning tool or a framework which is used to identify and evaluate the Strengths, Weaknesses, Opportunities, and Threats related to an organization or a specific project including setting its standing operating procedures (SOPs).  It is widely used in business studies, politics, strategic military planning, think tanks, policy-making, international relations, socio-economic as well as socio-political dimensions, and education etc. Similarly, in the context of education, SWOT analysis provides a very comprehensive framework for assessing various aspects of educat...
Post a Comment
Read more

Social Media Literacy and Educational Approaches in the 21st Century Teaching & Learning Context: B.Ed Honours Course Content

Social Media Literacy & Modes of Education in 21st Century (B.Ed Honours) Course Content Introduction The term social media refers to the digital interaction among different social groups. One of the most integral aspects of human life in the 21st century is social media, and it has significantly transformed how individuals communicate, interact, and gain information. Social media has opened the door to new opportunities for learning and information sharing including diverse challenges for teachers and learners in the process of teaching and learning.  In less advanced countries like Pakistan, teachers are still reluctant to use social media platforms while teaching because they lack certain skills to use different social media platforms effectively. As a result of it, such teachers rely on outdated traditional methods of teaching. On the other hand, many students believe that the purpose of social media use is just for entertainment and informal interaction with digital friend...
Post a Comment
Read more

BOOKS ARE THE BEST OF ALL THE FRIENDS!

Books are the Best of all the Friends  Overview: Francis Bacon rightly said that “some books are tasted, others to be swallowed, and some few to be chewed and digested”. In his quote, Bacon emphasized that there are very few books only to be read out as wholly because they draw our attention with diligence and develop curiosity as we go on reading them further and further. Actually, books are the food for our brains and thoughts. They provide us knowledge, and deep information and develop creativity along with critical thinking skills.  Books lead us towards a world of fantasy and imagination and pose various logical and rational questions and intend to seek our reflection. According to Charles W. Eliot, “books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers”. Books are best friends and they are always ready to talk to us and share their information and experiences with us. Books are mi...
Post a Comment
Read more