A girl observes that, if she calls out inside a cave, she can hear an echo. Which wave property is responsible for the echo?
- Adiffraction
- Bdispersion
- Creflection
- Drefraction
Physics 0625 · IGCSE · General properties of waves
A girl observes that, if she calls out inside a cave, she can hear an echo. Which wave property is responsible for the echo?