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Physics · Oct / Nov 2019 · Paper 12 · Question 27

5054Sound

Which row shows the speed of sound in air ($c_a$), liquid ($c_L$) and solid ($c_s$) in order from slowest to fastest?

  1. A$c_L$ $c_s$ $c_a$
  2. B$c_L$ $c_a$ $c_s$
  3. C$c_a$ $c_L$ $c_s$
  4. D$c_s$ $c_L$ $c_a$

As printed in the paper

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Correct answer: C. $c_a$ $c_L$ $c_s$

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