Frequency of sound wave determines: MCQ with Answer and Explanation

Frequency of sound wave determines:
A. Loudness
B. Pitch
C. Timbre
D. Speed
Answer: Option B
Solution (By JKSSB Mock Tests)
Frequency → pitch perception: higher frequency = higher pitch. Loudness depends on amplitude; timbre on waveform; speed on medium properties. Memory aid: 'Frequency = pitch; Amplitude = loudness'. Basic sound property question frequently tested to verify perceptual attribute associations in competitive exams.

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Practice More Physics Questions

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C.V. Raman was awarded Nobel Prize for his work on
A. Photoelectric effect
B. Nuclear fission
C. X-rays
D. Raman effect

Correct Answer: Option D


Explanation:
Raman effect: inelastic scattering of light, 1928, Nobel 1930.

This question belongs to: Science Physics
Question #2
A 10 kg object is lifted to 5 m and then allowed to fall. Kinetic energy just before hitting ground (g=10) is
A. 0 J
B. 500 J
C. 250 J
D. 1000 J

Correct Answer: Option B


Explanation:
PE at top = mgh = 10×10×5 = 500 J, converted to KE = 500 J (assuming no air resistance).

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The substance used as moderator in nuclear reactor must
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C. Slow down neutrons without absorbing them
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Correct Answer: Option C


Explanation:
Moderator slows neutrons via elastic collisions, low absorption. Heavy water, graphite.

This question belongs to: Science Physics