General Education Diploma (GED Oman) · Physics And Chemistry

Waves and Sound

7 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 7 questions

  1. A siren emitting 800 Hz moves at 68 m/s directly towards a stationary listener. Taking the speed of sound as 340 m/s, what frequency does the listener hear?
  2. A siren emitting 500 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?
  3. A siren emitting 600 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?
  4. A closed-end (one end closed) tube of length 0.85 m has air at which the speed of sound is 340 m/s. What is the fundamental frequency?
  5. A closed-end (one end closed) tube of length 0.425 m has air at which the speed of sound is 340 m/s. What is the fundamental frequency?
  6. In a double-slit experiment, light of wavelength 700 nm passes through slits 1 mm apart. The screen is 2 m away. What is the spacing between adjacent bright fringes?
  7. In a double-slit experiment, light of wavelength 600 nm passes through slits 0.5 mm apart. The screen is 1.5 m away. What is the spacing between adjacent bright fringes?

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