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JAMB Physics 1991 Question 24

Question 24

Waves

Which of the following is TRUE of light and sound waves?

  1. A.They both transmit energy
  2. B.They both need a medium for propagation
  3. C.They are both transverse waves
  4. D.Their velocities in air are equal.
Show the answer and explanation

Answer: A (They both transmit energy)

Explanation

All waves carry energy. Light needs no medium, sound is longitudinal, and light is about a million times faster.