Advertisements
Advertisements
Question
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey.
Advertisements
Solution
Dolphins sends the sound having frequencies between 120 kHz to 150KHz. The returning echoes used to help their prey.
APPEARS IN
RELATED QUESTIONS
| 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 |
What do you mean by a vibratory motion?
What are infrasonics? Can you hear them?
Why are musical instruments provided with more than one string ?
Name the type of waves produced when a tuning fork is struck in air.
What is sound? What type of waves are sound wave in air?
What is the audible range of frequency for human?
A musical instrument is producing continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through ______.
An earthquake produces which kind of sound before the mainshock wave begins
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 ______.
