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.

Sample questions

1. 1.A radar is able to detect the reflected waves from an enemy aeroplane after a time interval of 0.02 millisecond. If the velocity of the waves is $3 \times 10^{8} \mathrm{ms^{-1}}$, calculate the distance of the plane from the radar.
2. 2.Which property of waves is essential for their use in echo depth sounding?
   • A.Waves must be visible to the human eye.
   • B.Waves must travel undeviated over long distances and form a narrow beam.
   • C.Waves must have a frequency below 20 Hz.
   • D.Waves must be absorbed quickly by the medium.
3. 3.What property of a musical note allows us to distinguish between two notes of the same pitch and intensity produced by different instruments, as illustrated in the diagram?
   • A.Amplitude
   • B.Frequency
   • C.Quality or Timbre
   • D.Wavelength
4. 4.How is a sound wave produced in a string that is fixed at both ends?
   • A.By generating longitudinal waves directly in the string that travel to the ear.
   • B.By creating transverse vibrations that reflect at fixed ends, forming standing waves which produce longitudinal waves in air.
   • C.By striking the string to produce only transverse waves that reach the ear directly.
   • D.By plucking the string to create sound waves that do not reflect at the ends.
5. 5.What do the terms (1) amplitude and (2) frequency of a wave refer to?
   • A.(1) Distance between two crests; (2) Time taken for one vibration.
   • B.(1) Maximum displacement from mean position; (2) Number of vibrations per second.
   • C.(1) Speed of the wave; (2) Wavelength of the wave.
   • D.(1) Height of the wave; (2) Energy carried by the wave.