Neco 2019 Physics Question 5

Practice objective / multiple choice question 5 from the 2019 Neco Physics examination.

Neco 2019 Physics Objective / Multiple Choice Medium Difficulty
Question 5 NECO • 2019 • PHYSICS • objective

A string of length \(2.0\,\text{m}\) is fixed at both ends and vibrates in its fundamental mode with frequency \(120\,\text{Hz}\). When the tension in the string is increased by \(50\,\text{N}\), the frequency rises to \(150\,\text{Hz}\). Determine the original linear mass density of the string in \(\text{kg\,m}^{-1}\). Give your answer in scientific notation to two significant figures.

Answer Options

Correct Answer A. 3.9e-4
B. 5.1e-4
C. 4.2e-4
D. 2.8e-4
Correct Answer
A
Correct Option:
3.9e-4

About This Question

This is Neco 2019 Physics Question 5. It is one of the objective questions from the 2019 Neco Physics examination.

Difficulty level: Medium .

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