Igcse Model Questions Vol1 2025 Physics Question 26

Practice objective / multiple choice question 26 from the 2025 Igcse Model Questions Vol1 Physics examination.

Igcse Model Questions Vol1 2025 Physics Objective / Multiple Choice Medium Difficulty
Question 26 IGCSE_MODEL_QUESTIONS_VOL1 • 2025 • PHYSICS • objective

A string fixed at both ends vibrates in its third harmonic (three loops) when the frequency is \(120\ \text{Hz}\). The tension in the string is then increased by 20% while its linear mass density remains unchanged. What frequency will produce the fourth harmonic (four loops) in the same string after the tension change? Give your answer to the nearest hertz.

Answer Options

Correct Answer A. 175 Hz
B. 192 Hz
C. 140 Hz
D. 160 Hz
Correct Answer
A
Correct Option:
175 Hz

About This Question

This is Igcse Model Questions Vol1 2025 Physics Question 26. It is one of the objective questions from the 2025 Igcse Model Questions Vol1 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