Neco 2021 Physics Question 27

Practice objective / multiple choice question 27 from the 2021 Neco Physics examination.

Neco 2021 Physics Objective / Multiple Choice Medium Difficulty
Question 27 NECO • 2021 • PHYSICS • objective

Two loudspeakers A and B emit sound of the same frequency and equal intensity level of \(85\ \text{dB}\) at a distance of \(1\ \text{m}\) from each speaker. They are placed \(6\ \text{m}\) apart on a straight line. A point P lies on the line joining them, \(2\ \text{m}\) from A and \(4\ \text{m}\) from B. Assuming the speakers are in phase, calculate the resulting sound intensity level at P (in dB).

Answer Options

Correct Answer A. 82.5
B. 81.5
C. 84.0
D. 80.0
Correct Answer
A
Correct Option:
82.5

About This Question

This is Neco 2021 Physics Question 27. It is one of the objective questions from the 2021 Neco Physics examination.

Difficulty level: Medium .

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support