Question

1 decibel represents an actual increase of ____ times in sound energy?

0.126


1.26


12.6


126​

Answer 1

Answer:

অমিল শব্দটি কাটো (x) ঃ সত্য, অদ্য, বরাদ্দ।

কার আলােয় জাগ্রত চারপাশ? ঠিক উত্তরে বেছে লেখে

ঘ)

ক)

চাদ

(খ)

তারা

Answer 2

Answer:

1 decibel represents an actual increase of .26  times in sound energy

Explanation:

Decibel

• One decibel (0.1 bel) is equal to 10 times the power ratio's common logarithm.
• The intensity of a sound is expressed mathematically as 10 log10 (S1/S2), where S1 and S2 are the intensities of the two sounds.
• Doubling a sound's intensity corresponds to an increase of little more than 3 dB

• A logarithmic approach to express a ratio between things like power, sound pressure, and voltage is the modest decibel.

Decibels rise in a linear fashion.

• Logarithmic scales are used to measure decibels. This is a method of accounting for or measuring an exponentially growing quantity.
• For instance, every 10 dB increase in decibels corresponds to a 10-fold increase in sound pressure level (SPL).
• A sound measured at 10 dB is actually 10 times louder than one measured at near silence (0 dB). A sound of 20 dB is 100 times louder than almost complete silence.

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