How many times louder is a 62-dB sound than a 25-dB sound?
Approximately how many times louder is a 155-dB sound than a 75-dB sound? 16.59 Approximately how many times louder is a 155-dB sound than a 75-dB sound? 16.59
How many times louder is a 120-dB sound than a 30-dB sound?
Approximately how many times louder is a 155-dB sound than a 85-dB sound?
The intensity of a sound from one source is 8000 times that of another. How much more is the decibel level of the louder sound than that of the quieter one? Answer: Db
A rock band plays at a 56 dB sound level. How many times greater is the intensity from another rock band playing at 106 dB?
A rock band plays at a 67 dB sound level. How many times greater is the intensity from another rock band playing at 105 dB?
9. Sound levels are measured by the logarithmic decibel scale, named after Alexander Graham Bell. The sound level, L, corresponding to an intensity of I, in watts per square metre, is し= 10 log-, where lo is the minimum intensity audible to the human ear. If amplified rock music has a loudness of 120 dB and ordinary conversation has a loudness of 50 dB, how many times louder than ordinary conversation is amplified rock music? 9. Sound levels are measured...
The sound level measured in a room by a person watching a movie varies from 50 dB to 100 dB during a loud part. Approximately how many times louder is the latter sound? In a student laboratory exercise, the wavelength of a 30,000 Hz wave is measured to be 1.085 cm. Find the air temperature.
18. What is the intensity level of a 25 dB sound after it has been amplified 1000 times 35 dB 45 dB 55 dB 65 dB None of the above a. b. C. d. e.
5. By how many decibels do you reduce the sound intensity level due to a source of sound if you double your distance from it? Assume that the waves expand spherically. dB 6. The sound in a classroom is 63000 times as intense as the minimum threshold of hearing. What is the intensity level of this sound in decibels? dB