Multiple choice

Consider the following statements:

  1. The walls of the halls built for musical concert should reflect the sound.
  2. Ultrasonic scanners are used to locate tumors in a tissue.

Which of the given statements is/are correct?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

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

Statement 1 is incorrect. The walls of the halls built for musical concert should absorb the sound. If not, sound is reflected from walls, ceilings or floors which disturbs the sound from an orchestra or a speaker which reaches the audience. Statement 2 is correct. Scanners producing ultrasonic waves are used to locate the tumors in a tissue.

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