ICSE Class 10 Sound — Mock Test (2027)
Free online mock test for Sound (ICSE Class 10 Physics) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Sound chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Sound travels in the form of
- A.crest
- B.trough
- C.compression and rarefactions
- D.all of the above
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2.A sound made on the surface of a lake takes 3 s to reach a boatman. How much time will it take to reach a diver inside the water at the same depth? (Velocity of sound in air = 330 m s⁻¹; Velocity of sound in water = 1450 m s⁻¹)
- A.0.68 s
- B.1.32 s
- C.2.27 s
- D.6.67 s
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3.Two strings of a guitar are of lengths $40\mathrm{cm}$ and $20\mathrm{cm}$, such that they are made from same material and are of same thickness and under same tension. If the frequency of longer wire is $250\mathrm{Hz}$, find the frequency of smaller wire.
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4.The sound level at a point is increased by 30 dB. By what factor is the pressure amplitude increased?
- A.16 times
- B.10 times
- C.32 times
- D.8 times
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5.Assertion: The flash of lightening is seen before the sound of thunder is heard. Reason: Speed of sound is greater than speed of light. (a) Both assertion and reason are true and reason is the correct explanation of assertion. (b) Both assertion and reason are true but reason is not the correct explanation of assertion. (c) Assertion is true but reason is false. (d) Assertion is false but reason is true.
- a.Both assertion and reason are true and reason is the correct explanation of assertion.
- b.Both assertion and reason are true but reason is not the correct explanation of assertion.
- c.Assertion is true but reason is false.
- d.Assertion is false but reason is true.
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