waec model questions vol1 2024 physics
Objective • Question 3
Question 3
WAEC_MODEL_QUESTIONS_VOL1
•
2024
A tuning fork produces a sound wave with a frequency of 440 Hz. If the speed of sound in air is 340 m/s, calculate the wavelength of the sound wave. If the frequency is increased to 880 Hz, what will be the new wavelength?
Answer Options
A.
0.8827 m for the first frequency; 0.4414 m for the second frequency.
B.
0.5 m for the first frequency; 0.25 m for the second frequency.
Correct Answer
C.
0.7727 m for the first frequency; 0.3864 m for the second frequency.
D.
0.6667 m for the first frequency; 0.3333 m for the second frequency.
Correct Answer
C
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