Multiple Choice
A certain crying baby emits sound with an intensity of 8.0 × 10-8 W/m2.What is the intensity level due to a set of five such crying babies,all crying with the same intensity? You can neglect any absorption,reflection,or interference of the sound.The lowest detectable intensity is 1.0 × 10-12 W/m2.
A) 79 dB
B) 69 dB
C) 56 dB
D) 49 dB
E) 36 dB
Correct Answer:
Verified
Correct Answer:
Verified
Q1: A heavy stone of mass m is
Q5: Which one of the following statements is
Q6: Four traveling waves are described by the
Q19: As you stand by the side of
Q21: In the figure,which of the curves best
Q23: A sound source emits 20.0 W of
Q24: The intensity level of a "Super-Silent" power
Q29: The speed of sound in the air
Q30: The figure shows the displacement y of
Q35: A transverse wave is traveling on a