Multiple Choice
To decrease the intensity of the sound you are hearing from your speaker system by a factor of 36, you can
A) reduce the amplitude by a factor of 12 and increase your distance from the speaker by a factor of 3.
B) reduce the amplitude by a factor of 4 and increase your distance from the speaker by a factor of 3.
C) reduce the amplitude by a factor of 2 and increase your distance from the speaker by a factor of 3.
D) reduce the amplitude by a factor of 3 and increase your distance from the speaker by a factor of 4.
E) reduce the amplitude by a factor of 3 and increase your distance from the speaker by a factor of 12.
Correct Answer:
Verified
Correct Answer:
Verified
Q5: A 100-m long transmission cable is suspended
Q6: A circus performer stretches a tightrope between
Q7: It is possible to hear an approaching
Q8: The variation in the pressure of helium
Q9: If y = 0.02 sin (30x −
Q11: A spherical wave has the form <img
Q12: A boy has climbed to the top
Q13: The lowest A on a piano has
Q14: By what factor is the intensity of
Q15: A truck moving at 36 m/s passes