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Recent questions tagged acoustics of buildings
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A studio measuring 20 m × 12 m × 8 m, has a reverberation time of 1.0 * when empty. What will be the reverberation time when an audience of 200
asked
Feb 19, 2019
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
+2
votes
1
answer
In an auditorium seats were arranged in rows and columns. The number of rows was equal to
asked
Jan 2, 2019
in
Economics
by
kratos
class-8
arithmetic progression
jee
class-11
mathematical of methods for economics
quadratic equations
class-10
jee mains
acoustics of buildings
+3
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1
answer
Average absorption coefficient of a room of height 15 ft, breadth 20 ft and length 30 ft, is 0.2. Find the reverberation time of the room.
asked
Dec 28, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
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1
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A small speaker delivers 2 W of audio output. At what distance from the speaker will one detect 120 dB intensity sound ?
asked
Dec 27, 2018
in
Class 12
by
kratos
environmental issues
motion
waves
neet
class-11
jee
sound waves
jee mains
acoustics of buildings
+2
votes
1
answer
Spherical sound waves are produced uniformly in all directions from a point source, the radiated power P being 40 W.
asked
Oct 28, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
+3
votes
1
answer
It is found that one source of sound is 20 dB louder than another source. What is the ratio of their intensities?
asked
Oct 2, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
+2
votes
1
answer
The sound intensity level at a point 4m from the point source is 10dB and the sound level at a distance 2m from the same source is (x + 10)dB.
asked
Aug 6, 2018
in
JEE
by
kratos
irodov
waves
oscillations and wave
jee
jee mains
elastic waves
acoustics of buildings
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1
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In auditorium has volume 10^5 m^3 and surface area of absorption 2 x 10^4 m^2. Its average absorption coefficient is 0.2.
asked
Jul 31, 2018
in
JEE
by
kratos
isc
arithmetic progression
jee
class-5
perimeter and area
class-10
icse
jee mains
acoustics of buildings
class-12
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vote
1
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In an auditorium a source of sound of power P1 is switched on. After sufficiently long time,
asked
Jun 26, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
+2
votes
1
answer
The sound level in a classroom is 50 dB. How much is the intensity of sound wave (W/m^2) in that classroom?
asked
Jun 2, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
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vote
1
answer
Two sound waves have intensities 5 × 10^–10 W/m^2 and 1 × 10^–6 W/m^2. By how many decibels is the louder sound above the other ?
asked
Apr 27, 2018
in
Class 12
by
kratos
environmental issues
waves
neet
jee
aiims
jee mains
acoustics of buildings
+1
vote
1
answer
A radio station delivers 75 MegaWatts of power which is distributed uniformly in all directions to the radio waves.
asked
Apr 19, 2018
in
Physics
by
kratos
atom models
modern physics
acoustics
class-11
jee
photometry
class-10
jee mains
acoustics of buildings
quantum physics
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votes
1
answer
Derive the expression of the time of reverberation in a ‘**** room’.
asked
Mar 25, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
+2
votes
1
answer
A hall has a volume of 2000 m^3. Its total absorption is equivalent to 90 m^2 of open window.
asked
Mar 4, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
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vote
1
answer
An office room of size 10 ft high, 20 ft wide and 30 ft long has walls made of plaster, wood and glass
asked
Mar 2, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
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vote
1
answer
If ground is sufficiently rough, what is kinetic energy of the body now in the given time interval ?
asked
Feb 28, 2018
in
JEE
by
kratos
oscillations
upsee
jee
circles
class-11
class-10
jee mains
binomial theorem
acoustics of buildings
sequences and series
+2
votes
1
answer
An auditorium is 20 ft high, 50 ft wide and 100 ft long and contains 500 wooden seats. Each seat has total absorption power 0.2 unit.
asked
Feb 7, 2018
in
JEE
by
kratos
acoustics of buildings
jee
jee mains
+1
vote
1
answer
The material generally used for sound proofing of rooms like a recording studio and auditorium, etc. is:
asked
Jan 11, 2018
in
JEE
by
kratos
cbse
class-11
jee
jee mains
diffraction
acoustics of buildings
class-12
hornbill
landscape of the soul
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