Question

Measurement of unit of intensity of sound is

• A. calorie
• B. watt
• C. decibel
• D. gram

Hint:

Sound intensity is commonly measured in decibels (dB), a logarithmic unit used to express the ratio of two values.

Answer 1

The Correct Option is C

Step 1: Understanding sound intensity.
The intensity of sound is measured in decibels (dB), which is a unit that quantifies sound pressure level. It is commonly used to measure the loudness of sounds.
Step 2: Analyzing the options.
- (A) Calorie: Calorie is a unit of energy, not used to measure sound intensity.
- (B) Watt: Watt is a unit of power, but not for measuring sound intensity.
- (C) Decibel: This is correct. The decibel is the correct unit for measuring the intensity of sound.
- (D) Gram: Gram is a unit of mass, not related to sound intensity.
Step 3: Conclusion.
The correct answer is (C) decibel, as it is the standard unit for measuring the intensity of sound.
Final Answer: The correct answer is (C) decibel.