Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Define frequency term in relation to a wave.
Define wave velocity term in relation to a wave.
What is the condition necessary for an echo to be heard distinctly?
Name the waves which are used in sonar to find the depth of a sea. Give one reason for their use.
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)?
Write the approximate value of the speed of sound in iron.
What do you understand by the ‘Echolocation system of Dolphins’?
Why is an echo not heard when the distance between the source of sound and reflection body is less than 10 m?
