Advertisements
Advertisements
प्रश्न
How do bats avoid obstacles in their way, when in flight?
Advertisements
उत्तर
Bats can produce and detect the sound of very high frequency up to about 1000kHz. The sounds produced by flying bats get reflected back from any obstacle in front of it. By hearing the echoes, bats come to know even in the dark where the obstacles are. So they can fly safely without colliding with the obstacles.
संबंधित प्रश्न
Name the characteristic of sound in relation to its waveform
Displacement distance graph of two sound waves A and B, travelling in a medium, are as shown in the diagram below.
Study the two sound waves and compare their:
1) Amplitudes
2) Wavelengths
Define amplitude term in relation to a wave.
What are infrasonic waves?
Write the approximate value of the speed of sound in air.
What do you understand by the ‘Echolocation system of Dolphins’?
Draw a diagram representing a wave of amplitude 4 cm and wavelength 2 m. If the frequency of the wave is 150 Hz, calculate its velocity.
