CBSE · Class 8 · Science · SoundUnit used to measure the loudness of sound is:
Step-by-Step Solution
The loudness of sound is expressed in units called decibels (dB). Normal breathing is about 10 dB, while a normal conversation is about 60 dB.
Detailed Options Breakdown
Option : Hertz
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Sound.
Option 1: Decibel (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Meter
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Sound.
Option 3: Joule
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Sound.
💡 Study Guide: This question tests core syllabus concepts from Sound. For formulas, key summaries, and mock exam reference guides, read the full Sound Revision Notes.