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NDA2011General AbilityGeneral ScienceActual

Bats can ascertain distances, directions, nature and size of the obstacles at night. This is possible by reflection of the emitted:

Options

  1. Aultrasonic waves from the bat.
  2. Bultrasonic waves from the distant objects.
  3. Csupersonic waves from the bat.
  4. Dsupersonic waves from the distant objects.

Correct answer

A. ultrasonic waves from the bat.

Step-by-step solution

The correct answer is option (A).

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