Description : The pitch of sound is measured by its (a) Intensity (b) Waveform (c) Frequency (d) Loudness
Last Answer : Ans:(c)
Description : The pitch of the sound is measured by its: (1) Intensity (2) waveform (3) Frequency (4) Loudness
Last Answer : (3) Frequency Explanation: Pitch relates to the frequency, or how many times a second the particles vibrate. The distance between one wave and the next gives the wavelength. For sounds all travelling at the same speed, highfrequency (high-pitched) sounds have waves very close together.
Description : At a distance of 10 meters form a point source, the intensity level is measured to be 70 dB. At what distance form the source well the intensity be 40 dB? How do you solve this?
Last Answer : Going on memory here….3db is half the intensity. The intensity is usually inversely proportional to r squared. The rest is math, so 70–40 is 30 or ten halves.
Description : On which scale the intensity of earthquakes is measured? -Do You Know?
Last Answer : answer:
Description : When a behavior is measured in terms of its intensity the characteristic being measured is its latency?
Last Answer : Need answer
Description : When a behavior is measured in terms of its intensity the characteristic being measured is its?
Description : The intensity of earthquake is measured by
Last Answer : Seismograph
Description : On which scale the intensity of earthquakes is measured?
Last Answer : Richter scale
Description : Pick up the correct statement from the following: (A) For determination of small colour intensities, tintometer is generally used (B) The odour of water sample is generally measured by a term called odour intensity (C) The colour of water sample may be detected by Nessler tube (D) All the above
Last Answer : (D) All the above
Description : Pick out the wrong statement. (A) The X-rays cannot be deflected by electric field unlike cathode rays (B) The intensity of X-rays can be measured by ionisation current produced due to the ... the anode-cathode voltage (D) Crystal structure of a material can be studied by an electron microscope
Last Answer : (C) The quality of X-rays can be controlled by varying the anode-cathode voltage
Description : Traffic Intensity can be measured in (A) Erlangs (B) CCS (C) CM (D) All of the above
Last Answer : (D) All of the above
Description : Light intensity is generally described in terms of __________ and measured in _________. ∙ A. Luminous flux density; Lumens per unit area ∙ B. Luminous flux intensity; Lumens per unit area ∙ C. Luminous flux density; Lumens per unit volume ∙ D. Luminous flux intensity; Lumens per unit volume
Last Answer : Luminous flux density; Lumens per unit area
Description : What is the intensity of sound ?
Last Answer : The amount of energy flowing per second through a single area perpendicular to the path of sound passing through a medium is called the intensity of sound . It is expressed by l .
Description : What is the name of the instrument used to determine the intensity of sound ?
Last Answer : The name of the instrument used to determine the intensity of sound is audio meter.
Description : What is the conventional unit of sound intensity ?
Last Answer : Conventional unit decibels of sound intensity.
Description : What is the unit of intensity of sound in Si method ?
Last Answer : The unit of sound intensity in the Si method is Wm ^ -2
Description : What is the intensity of sound during normal conversation?
Last Answer : What is the intensity of sound during normal conversation? A. 10-20 db B. 30-60 db C. 70-90 db D. 120-150 db
Description : The approximate intensity level of the sound which can caused damage to the ear drum is _____? A. 100 dB B. 60 dB C. 160 dB D. 20 dB
Last Answer : ANSWER: A
Description : Ondometer is a - (1) Measuring instrument for distance covered by motor wheels (2) Measuring instrument for frequency of electromagnetic waves (3) Device for measuring sound intensity (4) Measuring instrument for electric power
Last Answer : (2) Measuring instrument for frequency of electromagnetic waves
Description : When we hear a sound, we can identify its source from ______. (1) wave length of sound (2) the overtones present in the sound (3) the intensity of sound (4) the amplitude of sound
Last Answer : (2) the overtones present in the sound Explanation: An overtone is any frequency higher than the fundamental frequency of a sound. Using the model of Fourier analysis, the fundamental and the overtones together are called partials.
Description : Decibel is the unit of ______. (1) Speed of light (2) Intensity of sound (3) Intensity of heat (4) None of these
Last Answer : (2) Intensity of sound Explanation: Decibel (dB) unit is used for expressing the ratio between two amounts of electric or acoustic power for measuring the relative loudness of sounds.
Description : Intensity of sound has - (1) an object existence (2) a subject existence (3) no existence (4) both subjective and objective existence
Last Answer : (1) an object existence Explanation: Intensity of sound has an object existence. Sound intensity is defined as the sound power per unit area.
Description : Which of the following property of sound is affected by change in air temperature – (1) Frequency (2) Intensity (3) Amplitude (4) Wavelength
Last Answer : (4) Wavelength Explanation: The wavelength of sound changes with temperature. This is because the speed of sound changes with the temperature. Since the speed of sound is different at different temperature, this ... while the same tone in fresh water at 68°F would have a wavelength of 48.05 feet.
Description : Dioptere is the unit of – (1) power of a lens (2) focal length of a lens (3) light intensity (4) sound intensity
Last Answer : (1) power of a lens
Description : The pitch of sound depends on its – (1) Frequency (2) Intensity (3) Velocity (4) Amplitude
Last Answer : (1) Frequency Explanation: Pitch is a perceptual property that allows the ordering of sounds on a frequencyrelated scale. Pitch may be quantified as a frequency, but pitch is not a purely objective physical property; it is a subjective psychoacoustical attribute of sound.
Description : Loudness of sound varies directly with vibrating body’s – (1) Intensity (2) Amplitude (3) Pitch (4) Quality
Last Answer : (2) Amplitude Explanation: Loudness of Sound: Loudness of sound depends on amplitude of vibration. Loudness of sound is directly proportional to square of amplitude of vibration.
Description : Decibel is used to measure the intensity of - (1) Magnetic field (2) Sound (3) Light (4) Heat
Last Answer : (2) Sound Explanation: The decibel (dB) is used to measure sound level, but it is also widely used in electronics, signals and communication.
Description : Sound energy passing per second through a unit area held perpendicular is called - (1) Intensity (2) Frequency (3) Amplitude (4) Quality
Last Answer : (1) Intensity Explanation: Sound energy passes through a unit area held perpendicular to the direction of propagation of sound waves is called intensity of sound.
Description : Decibel is the unit used for – (1) Speed of light (2) Intensity of heat (3) Intensity of sound (4) Radio wave frequency
Last Answer : (3) Intensity of sound Explanation: The decibel (abbreviated dB) is the unit used to measure the intensity of a sound. The decibel scale is a little odd because the human ear is incredibly ... of a physical quantity (usually power or intensity) relative to a specified or implied reference level.
Description : What is affected by the distance between the listener and the source of the sound because the intensity varies inversely with the square of the distance? A. Volume B. Pitch C. Loudness D. Frequency
Last Answer : C. Loudness
Description : The sound intensity received from the nearby jet plane is 12.6 µW/m2 and that from another jet plane some distance away is 0.45 µW/m2 . Find the relative loudness of the two. A. 14.0 dB B. 14.5dB C. 12.5 D. 14.5
Last Answer : B. 14.5dB
Description : What sound intensity corresponds to a sound-intensity level of 50dB? A. 1 x 10-6W/m2 B. 1 x 10-7W/m2 C. 1 x 10-8W/m2 D.1 x 10-5W/m2
Last Answer : B. 1 x 10-7W/m2
Description : For the safety and comfort of factory workers, the sound-intensity level in a certain factory must remain below 85 dB. What is the maximum sound intensity allowed in this factory? A. 3.2 x 10-4 W/m2 B. 3.2 x 10-6 W/m2 C. 3.2 x 10-10 W/m2 D. 3.2 x 10-3 W/m2
Last Answer : A. 3.2 x 10-4 W/m2
Description : A choir consisting of 36 individuals all of whom can sing with the same intensity. A soloist sings a certain passage and then is joined by the remainder of the choir members for a repeat of the passage. What is the ... sound intensity level in the two cases? A. 3 dB B. 6 dB C. 36 dB D. 15.6dB
Last Answer : D. 15.6dB
Description : ECE Board Exam April 1997 Sound intensity is given as A. df/dP B. dE/dp C. dA/dP D. dP/dA
Last Answer : D. dP/dA
Description : Sound intensity level is ________. A. 10 log I/I(ref) B. 10 log I(ref)/I C. 30 log I/I(ref) D. 20 log I/I(ref)
Last Answer : A. 10 log I/I(ref)
Description : The sound energy per unit area at right angles to the propagation direction per unit time. A. Sound intensity B. Loudness C. Coherence D. Sound stress
Last Answer : A. Sound intensity
Description : ____________ is the average rate of transmission of sound energy in a given direction through a cross sectional area of 1 sq.m. at right angle to the direction. A. Sound pressure B. Sound intensity C. Pressure variation D. Loudness
Last Answer : B. Sound intensity
Description : ECE Board Exam March 1996 A car horn outdoors produces a sound intensity level of 90 dB at 10 ft away. At this distance, what is the sound power in watt? A. 12 W B. 0.12 W C. 0.012 W D. 1.2 W
Last Answer : C. 0.012 W
Description : Any sound with intensity of beyond
Last Answer : 100db is harmful to human ears.
Description : The approximate intensity level of the sound which can cause damage to the ear drum is? A. 20 dB B. 60 dB C. 100 dB (Answer) D. 160 dB
Last Answer : C. 100 dB (Answer)
Description : What is the intensity of sound in normal conversation? (a) 10-20 dB (b) 30-60 dB (c) 70-90 dB (d) 120-150 dB
Last Answer : b) 30-60 dB
Description : The signal which has infinitely many levels of intensity over a period of time is called ……… A. digital signal B. analog signal C. both a and b D. sound signal
Last Answer : A. digital signal
Description : Which is the unit of measuring intensity of sound?
Last Answer : Decibels
Description : The sound which continues even after its source is cut off, is called (A) Reverberation (B) Echo (C) Intensity of sound (D) Interferenc
Last Answer : Answer: Option A
Description : Lux meter is used to measure…… a) Illumination level b) Sound intensity and illumination level c) Harmonics d) Speed
Last Answer : Illumination level
Description : Lux meter is used to measure…… c) Illumination level c) Harmonics d) Sound intensity and illumination level d) Speed
Description : Lux meter is used to measure…… a) Illumination level c) Harmonics b) Sound intensity and illumination level d) Speed
Description : What is intensity as it pertains to sound?
Last Answer : The amount of energy transmitted from a source.