Advertisements
Advertisements
प्रश्न
Explain how the principle of echo is used by the dolphin to locate small fish as its prey.
Advertisements
उत्तर
Dolphins sends the sound having frequencies between 120 kHz to 150KHz. The returning echoes used to help their prey.
संबंधित प्रश्न
Fill in the blank.
The pitch of a sound depends on its ________.
How is sound produced ?
Name the characteristic which differentiates two sounds of the same pitch and same loudness.
To detect the obstacles in their path, bats produce ______.
How is it possible to recognize a person by his voice without seeing him?
Name the type of waves produced when a tuning fork is struck in air.
Explain the terms 'crests' and troughs' of a wave? What type of waves consist of crests and troughs?
Which one of the following does not consist of transverse waves?
Select the correct option:
A part of the longitudinal wave in which particles of the medium are closer than the normal particles is called:
What kinds of waves are produced in solids, liquids, and gases?
Explain how the principle of echo is used by
The bat during its flight at night
Define one hertz.
What type of sound is produced by elephants and whales?
What is echolocation? How do animals make use of this phenomenon?
Sound is a ______ wave and needs a material medium to travel.
Name three animals which can hear ultrasonic vibrations.
What types of medium are required for sound to travel?
What are the uses of infrasonic sound?
What is a wave?
