Leaving Cert Ireland · Physics
Waves and Sound
2 practice questions, each with the answer and an explanation.
Practise Waves and Sound now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 2 questions
- A siren emitting 400 Hz moves at 170 m/s directly towards a stationary listener. Taking the speed of sound as 340 m/s, what frequency does the listener hear?
- In a double-slit experiment, light of wavelength 400 nm passes through slits 0.2 mm apart. The screen is 2 m away. What is the spacing between adjacent bright fringes?
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