Brain › Science & Technology

Loudness is measured in decibels. A pneumatic drill at about 40 feet gives about 85 decibels. How many decibels result from an airplane taking off 200 feet (60 m) away?

  1. 110
  2. 300
  3. 95
  4. 120

Answer

The correct answer is D) 120.

More Science & Technology questions

Play Brain · Practice