Multiple choice

Consider the following statements:

  1. In aerodynamics, Mach number is related to the speed of the object to that of the speed of the sound.
  2. Tinnitus is the perception of sound within the human ear not including the perception of sound outside.

Which of the given statements is/are incorrect?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Statement 1 is correct. Mach number is a dimensionless quantity representing the ratio of speed of the object to that of the speed of the sound. Statement 2 is also correct. Tinnitus is a resultant condition of noise pollution. In this, patient perceives the ringing noise in his/her ears.

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