Advertisements
Advertisements
Question
What do you understand by the ‘Echolocation system of Dolphins’?
Advertisements
Solution
It is similar to that of bats. It enables the dolphin to navigate among its companions and larger objects. It also enables the dolphin to detect fish, squid, and even small shrimp.
RELATED QUESTIONS
How is the frequency of a stretched string related it’s tension?
Define wavelength term in relation to a wave.
The following diagram shows three ways in which the string of an instrument can vibrate.

(a) which of the diagram shows the principal note?
(b) which has the frequency four times that of the first?
(c) what is the ratio of the frequency of the vibration in (i) and (ii)?
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
Why will an echo not be heard when the distance between the source of the sound and the reflecting surface is 10 m?
A cork piece is floating on the surface of the water in a pond. A piece of pebble is dropped into the water. What will be your observation?
Why is an echo not heard when the distance between the source of sound and reflection body is less than 10 m?
The direction of the incident sound, the direction of reflected sound, and the normal are in different Planes.
