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Sound QUESTIONS

Exam NameSound QUESTIONS
DescriptionSound QUESTIONS and Answers exams contains the questions from various competitive exams.These questions are the part of previous year paper.These kind of questions would be helpful in preparing for exams like IAS, PCS, UPSC, NDA, CDS SSC, RRB, PSC, IBPS
Exam TypeMASTER EXAM
Authenticity10002
creatorAnirudh(39043)
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Question: The technique used to transmit audio signal in television broadcasts is-

Answer:frequency modulation


Question: When the same note is played on a sitar and a flute the sound produced can be distinguished from each other because of the difference in;

Answer:quality only


Question: When the frequency distribution is normal:

Answer:mean mode and median are identical


Question: The noise level of 100 decibel would correspond to :

Answer:noise from a machine shop


Question: Which one of the following does TV remote control unit use to operate a TV set ?

Answer:radio waves


Question: Which of the following types is used by computed tomography employed for visualisation of the internal structure of human body ?

Answer:X-Rays


Question: When light waves pass from air to glass the variables affected are

Answer:wavelength and velocity


Question: The velocity of sound produced by a vibrating body varies:-

Answer:inversely as the density of the medium


Question: A particle is executing simple harmonic motion. Its total energy is proportional to its:-

Answer:square of amplitude of motion


Question: A wave under goes reflection from a rigid boundary. One of its characteristic parameters that changes is-

Answer:phase


Question: The quality of a musical note depends upon

Answer:its harmonic content


Question: In vaccum the speed of light

Answer:neither depends on its wavelength frequency nor intensity


Question: Which among the following in the necessary condition for simple harmonic motion ?

Answer:acceleration is proportional to the displacement from mean position and is always directed towards it


Question: Sound moves with higher velocity it

Answer:both (b) and (c)


Question: Which one of the following is not electromagnetic in nature ?

Answer:Cathode rays


Question: Which of the following is used in oven

Answer:Microwaves


Question: Which one of the following has highest frequency ?

Answer:cosmic rays


Question: Which of the following electromagnetic waves has the longest wavelength ?

Answer:Infrared rays


Question: X-rays were discovered by_

Answer:Roentgen


Question: Doppler effect is independent of

Answer:distance between source and observer