Advertisements
Advertisements
प्रश्न
What is echolocation? How do animals make use of this phenomenon?
Advertisements
उत्तर
Echolocation is defined as sending out sounds to judge the location, size, and motion of objects from the returning echoes. The animals use this phenomenon to locate the obstacles in their path and avoid them so it helps them in navigation and to locate their prey.
APPEARS IN
संबंधित प्रश्न
Name the characteristic which differentiates two sounds of the same pitch and same loudness.
The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.
How does the frequency of sound given by a stretched string depend on its
- length,
- tension?
Distinguish between light and sound waves. What are the consequences of the large difference in the speed of sound and that of light? Briefly explain them.
Two observers are stationed in two boats 4.5 km apart. A sound signal sent by one, under water, reaches the other after 3 seconds. What is the speed of sound in the water?
A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
Which of the following statements are correct?
- Sound is produced by vibrations.
- Sound requires a medium for propagation.
- Light and sound both require a medium for propagation.
- Sound travels slower than light.
Longitudinal waves are produced in solids liquids and also in gases.
Sound travels in the air as ______ wave.
