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Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
Bats detect the obstacles in their path by receiving the reflected:
  • A
    Infrasonic waves
  • B
    Ultrasonic waves
  • C
    Micro waves
  • D
    Radio waves
✓

Answer

  1. Ultrasonic waves

Explanation:

Bats emit a series of high-frequency sounds from their mouths or nostrils that bounce off objects and then return to the ears of bats. These high-frequency sounds are called ultrasonic waves. with the help of the reflection of ultrasonic waves, bats detect the obstacles in their path

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