Sound Waves
Q. What type of wave is a sound wave?
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A.
Transverse wave
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B.
Longitudinal wave
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C.
Surface wave
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D.
Electromagnetic wave
Solution
Sound waves are longitudinal waves, where the particle displacement is parallel to the direction of wave propagation.
Correct Answer: B — Longitudinal wave
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Q. What type of wave is sound classified as?
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A.
Transverse wave
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B.
Longitudinal wave
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C.
Surface wave
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D.
Electromagnetic wave
Solution
Sound is classified as a longitudinal wave, where the particle displacement is parallel to the direction of wave propagation.
Correct Answer: B — Longitudinal wave
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Q. Which of the following describes the Doppler effect?
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A.
Change in frequency due to motion
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B.
Change in amplitude due to distance
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C.
Change in speed due to temperature
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D.
Change in wavelength due to pressure
Solution
The Doppler effect refers to the change in frequency of a wave in relation to an observer moving relative to the wave source.
Correct Answer: A — Change in frequency due to motion
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Q. Which of the following describes the relationship between frequency and pitch?
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A.
Higher frequency means lower pitch
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B.
Lower frequency means higher pitch
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C.
Higher frequency means higher pitch
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D.
Frequency has no effect on pitch
Solution
Higher frequency corresponds to a higher pitch in sound.
Correct Answer: C — Higher frequency means higher pitch
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Q. Which of the following factors does NOT affect the speed of sound in a medium?
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A.
Temperature
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B.
Density
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C.
Humidity
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D.
Frequency
Solution
The speed of sound is affected by temperature, density, and humidity, but not by frequency.
Correct Answer: D — Frequency
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Q. Which of the following is a characteristic of a sound wave?
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A.
Transverse wave
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B.
Longitudinal wave
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C.
Electromagnetic wave
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D.
Static wave
Solution
Sound waves are longitudinal waves, where the particle displacement is parallel to the direction of wave propagation.
Correct Answer: B — Longitudinal wave
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Q. Which of the following is a longitudinal wave?
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A.
Light wave
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B.
Sound wave
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C.
Water wave
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D.
Radio wave
Solution
Sound waves are longitudinal waves, where particle displacement is parallel to wave direction.
Correct Answer: B — Sound wave
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Q. Which of the following materials transmits sound the fastest?
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A.
Air
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B.
Water
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C.
Steel
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D.
Wood
Solution
Sound travels fastest in solids like steel due to closely packed molecules.
Correct Answer: C — Steel
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