Waec Model Questions Vol1 2023 Physics Question 20

Practice objective / multiple choice question 20 from the 2023 Waec Model Questions Vol1 Physics examination.

Waec Model Questions Vol1 2023 Physics Objective / Multiple Choice Medium Difficulty
Question 20 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • objective

A tuning fork produces a sound wave with a frequency of 440 Hz. If the speed of sound in air is 343 m/s, calculate the wavelength of the sound produced. If the temperature of the air increases, causing the speed of sound to increase to 350 m/s, what will be the new wavelength at the same frequency?

Answer Options

A. 0.700 m initially; 0.720 m after speed increase.
B. 0.750 m initially; 0.765 m after speed increase.
Correct Answer C. 0.780 m initially; 0.795 m after speed increase.
D. 0.800 m initially; 0.810 m after speed increase.
Correct Answer
C
Correct Option:
0.780 m initially; 0.795 m after speed increase.

About This Question

This is Waec Model Questions Vol1 2023 Physics Question 20. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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