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JIPMER 2015
Exam
JIPMER
Year
2015
Subject
Botany
Chapter
Environmental Issues

JIPMER 2015 · Botany · Environmental Issues

If the threshold for hearing increasing 1000 times, the hearing...

If the threshold for hearing increasing 1000 times, the hearing loss is

Options

  1. A40 decibels
  2. B50 decibels
  3. C60 decibels
  4. DNone of these

Correct answer

D. None of these

Step-by-step solution

A decibel is a measure of the ratio between two sound stimuli. The decibel level of a sound that a normal human can hear and is calculated using formula. Intensity (in decibles) =10×log⁡=10 \times \log (sound/threshhold) Therefore, the intensity of a sound that is 1000 times, thresh hold is 30 decibels.
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