Advertisements
Advertisements
प्रश्न
Name three animals which can hear ultrasonic vibrations.
एक पंक्ति में उत्तर
Advertisements
उत्तर
Certain creatures like dogs, bats, dolphins, and mosquitoes can detect the waves.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Acoustics - Evaluation [पृष्ठ ७२]
APPEARS IN
संबंधित प्रश्न
Distinguish between loudness and intensity of sound.
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
How is sound produced ?
Write the audible range of frequency for the normal human ear.
Define the term intensity of a sound wave. State the unit in which it is measured.
What are characteristics of a wave motion?
Define sound ranging.
Match the following
| 1. | Infrasonic | (a) | Compressions |
| 2. | Echo | (b) | 22 kHz |
| 3. | Ultrasonic | (c) | 10 Hz |
| 4. | High-pressure region | (d) | Ultrasonography |
Name three animals, which can hear ultrasonic vibrations.
Two sound waves X and Y have the same amplitude and the same wave pattern but their frequencies are 60 Hz and 120 Hz respectively, then ______.
