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.Two musical notes of the same pitch and loudness are played on a violin and a piano, producing different waveforms. What causes this difference? Violin
   • A.The instruments produce different pitches despite the same note.
   • B.The instruments have different timbres due to varying overtones and harmonics.
   • C.The instruments emit sound at different velocities.
   • D.The instruments use different types of waves (mechanical vs. electromagnetic).
2. 2.On what principle is SONAR based?
   • A.Doppler effect to measure speed of underwater objects.
   • B.Echo depth sounding using ultrasonic waves to calculate distance.
   • C.Absorption of sound waves to detect underwater obstacles.
   • D.Refraction of sound waves to map the ocean floor.
3. 3.The ratio of the amplitudes of two waves is 4:9. What is the ratio of their intensities?
4. 4.Two friends were playing on identical guitars whose strings were adjusted to give notes of the same pitch. Will the quality of the two notes be the same?
   • A.Yes, because identical guitars produce identical waveforms.
   • B.No, because the subsidiary notes (overtones) differ, altering the waveform.
   • C.Yes, because pitch and quality are determined by the same factors.
   • D.No, because the guitars cannot be truly identical in construction.
5. 5.An ultrasonic scanner operating at a frequency of 4.2 MHz is used in a hospital to locate tumours in a tissue where the speed of sound is 1.7 km s⁻¹. What is the wavelength of the sound in the tissue?
   • A.0.405 mm
   • B.0.245 mm
   • C.2.47 mm
   • D.4.05 mm