question_answer1) The sound in human is produced by
A) heart done clear
B) mouth done clear
C) larynx done clear
D) hair done clear
View Solution play_arrowquestion_answer2) Frequency of sound is lowest for
A) man done clear
B) woman done clear
C) young boy done clear
D) young girl done clear
View Solution play_arrowquestion_answer3) In which medium sound travel fastest
A) solid done clear
B) liquid done clear
C) gas done clear
D) vacuum done clear
View Solution play_arrowquestion_answer4) For an oscillating pendulum of fixed length, which of the following is true?
A) frequency depends on amplitude of oscillation done clear
B) frequency and time period are not related. done clear
C) time period depends on amplitude of oscillation done clear
D) frequency and time period are related and do not depend on amplitude of oscillation. done clear
View Solution play_arrowquestion_answer5) Which one of the following material will reflect sound better?
A) Thermocole done clear
B) Curtain made from cloth done clear
C) Steel done clear
D) Paper done clear
View Solution play_arrowquestion_answer6) An object vibrated with a frequency of 15 Hz. Which of the following is true?
A) It produces sound which we can hear. done clear
B) It does not produce sound. done clear
C) It produces sound which we cannot hear. done clear
D) It produces sound which we can hear if we strain our ears. done clear
View Solution play_arrowquestion_answer7) Unit of frequency is
A) decibel (dB) done clear
B) Hertz (Hz) done clear
C) meter done clear
D) second done clear
View Solution play_arrowquestion_answer8) Inverse of frequency is called
A) amplitude done clear
B) frequency done clear
C) loudness done clear
D) time period done clear
View Solution play_arrowA) 1 sec done clear
B) 2 sec done clear
C) 3 sec done clear
D) 4 sec done clear
View Solution play_arrowquestion_answer10) Eardrum is a part of
A) sound producing organ done clear
B) skeletal system done clear
C) hearing organ done clear
D) reproductive organ done clear
View Solution play_arrowquestion_answer11) The hearing range of human ear is
A) 20 Hz to 20, 000 Hz done clear
B) less than 20 Hz done clear
C) more than 20,000 done clear
D) 20,00 Hz to 25, 000 Hz done clear
View Solution play_arrowquestion_answer12) The voice box is also called
A) stomach done clear
B) heart done clear
C) larynx done clear
D) mouth done clear
View Solution play_arrowquestion_answer13) Large amplitude of sound vibrations w produce
A) loud sound done clear
B) weak sound done clear
C) slow sound done clear
D) none of these done clear
View Solution play_arrowquestion_answer14) The pitch of sound depends oil
A) frequency done clear
B) amplitude done clear
C) both of these done clear
D) none of these done clear
View Solution play_arrowquestion_answer15) Vocal cords are the part of
A) mouth done clear
B) ear done clear
C) eyes done clear
D) larynx done clear
View Solution play_arrowquestion_answer16) The length of the vocal Cords is maximum for
A) man done clear
B) Woman done clear
C) boy done clear
D) girl done clear
View Solution play_arrowquestion_answer17) Shrill sound is of
A) higher frequency done clear
B) lower frequency done clear
C) higher amplitude done clear
D) lower amplitude done clear
View Solution play_arrowquestion_answer18) Flat sound is of
A) higher pitch done clear
B) lower pitch done clear
C) higher amplitude done clear
D) lower amplitude done clear
View Solution play_arrowquestion_answer19) Frequency of a body is 10 Hz, then range is
A) ultrasonic done clear
B) infrasonic done clear
C) audible done clear
D) decible (dB) done clear
View Solution play_arrowquestion_answer20) Unit of loudness
A) Hertz (Hz) done clear
B) meter done clear
C) second done clear
D) none of these done clear
View Solution play_arrowquestion_answer21) The speed of sound in solid, liquid and gas can be correctly compared as
A) solid > liquid > gas done clear
B) liquid > gas > solid done clear
C) liquid > solid > gas done clear
D) gas > liquid > gas done clear
View Solution play_arrowA) vibration of railway tracks done clear
B) vibration of air done clear
C) more speed of sound in solid medium done clear
D) hearing ability of the man done clear
View Solution play_arrowA) amplitude done clear
B) frequency done clear
C) loudness done clear
D) all of the above done clear
View Solution play_arrowquestion_answer24) The voices of men, women and children are different due to difference in
A) larynx done clear
B) lungs done clear
C) vocal cords done clear
D) wind pipe done clear
View Solution play_arrowquestion_answer25) An object moving at a speed greater than that of sound is said to be moving at
A) ultrasonic speed done clear
B) sonic speed done clear
C) infrasonic speed done clear
D) supersonic speed done clear
View Solution play_arrowquestion_answer26) The velocity of sound in vacuum is
A) \[332\text{ }m\text{ }{{s}^{-1}}\] done clear
B) \[330\text{ }m\text{ }{{s}^{-1}}\] done clear
C) \[\text{288 }m\text{ }{{s}^{-1}}\] done clear
D) 0 done clear
View Solution play_arrowA) speed of sound is greater than speed of light done clear
B) speed of sound is equal to the speed of light done clear
C) speed of light is much greater than the speed of sound done clear
D) none of these. done clear
View Solution play_arrowquestion_answer28) A to and fro motion by an object is also called
A) periodic motion done clear
B) oscillatory motion done clear
C) Cyclic motion done clear
D) none of these done clear
View Solution play_arrowquestion_answer29) An object oscillates 50 times in one second. What should be its frequency?
A) 0.2 Hz done clear
B) 0.02 Hz done clear
C) 0.002 Hz done clear
D) 50 Hz done clear
View Solution play_arrowA) 0.5 Hz done clear
B) 5 Hz done clear
C) 50 Hz done clear
D) 1 Hz done clear
View Solution play_arrow
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