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.Which of the following correctly distinguishes resonance from forced vibrations?
   • A.Resonance occurs at any frequency, while forced vibrations match natural frequency.
   • B.Resonance results in large amplitude vibrations, while forced vibrations have smaller amplitude.
   • C.Forced vibrations amplify motion, while resonance does not affect amplitude.
   • D.Resonance and forced vibrations are identical in all aspects.
2. 2.Sound waves of wavelength $\lambda$ travelling in a medium with a speed of $v \, \mathrm{m/s}$ enter another medium, where its speed is $2 \, v \, \mathrm{m/s}$. What will be the wavelength sound waves in the second medium?
   • a.$2 \, \lambda$
   • b.$4 \, \lambda$
   • c.$\lambda$
   • d.$3 \, \lambda$
3. 3.An observer stands at a certain distance away from a cliff and produces a loud sound. He hears the echo of the sound after 1.8 s. What is the distance between the cliff and the observer if the velocity of sound in air is 340 m/s?
   • A.306 m
   • B.612 m
   • C.153 m
   • D.204 m
4. 4.The human ear detects sounds in the frequency range from 20 Hz to 20000 Hz. Given the speed of sound in air as 330 m/s, what are the wavelengths corresponding to these extreme frequencies?
   • A.16.5 m and 0.00165 m
   • B.16.5 m and 0.0165 m
   • C.33 m and 0.033 m
   • D.8.25 m and 0.00825 m
5. 5.What is the principle on which SONAR operates?
   • A.Reflection of radio waves
   • B.Echo of ultrasonic waves to calculate distance
   • C.Absorption of sound waves by objects
   • D.Diffraction of light waves underwater