MCQ practice · SSC Physics Board questions · Chapter 7: Waves and Sound
While finding its way, a bat uses which property of sound?
Think it through first, then pick an option.
- a reflection
- b refraction
- c interference
- d superposition
Answer and explanation
Correct answer: a reflection
The bat's sound hits an obstacle and comes back; from this reflected sound (echo) it judges the distance.
Why the other options are wrong
- b refraction: Refraction means entering another medium. The bat uses the sound that comes back, which is reflection.
- c interference: Interference is not taught in this chapter. The bat uses reflected sound.
- d superposition: Superposition means two waves meeting at a point and adding. The bat's navigation relies on reflection.
Your account is open, so all 30,000+ MCQs from every chapter are yours. Start practising SSC Physics →
Want to keep going?
A free account carries you on to the next questions and opens 30,000+ MCQs from every chapter. Join before launch and Chirkut bundles are 60% off.
The ones you missed, worth one more look