WitrynaAnswer: Sound is a form of energy. As it moves away from the source its amplitude as well as its loudness decreases. The energy also get transformed in vibration of the … Witryna30 mar 2024 · Sounds must travel through a medium. Medium means a matter or substance through which sound travels. It can be solid, liquid or gas. Sound normally travels through air, However it can also travel through liquids and solids. Note - Sound does not travel through vacuum (as it is not a medium)
Important Points about Sound - Class 9 Sound Notes - Teachoo
Witryna7 kwi 2024 · However, if a melodic sound grows too loud, it ceases to be melodious. To know more, solve the important questions by visiting the page Important questions … Witryna16 mar 2024 · NCERT Question 8 Important . NCERT Question 9 Important . NCERT Question 10 Important ... NCERT Question 4 - Chapter 12 Class 9 - Sound . Last updated at March 16, 2024 by Teachoo. Why is sound wave called a … bio fraction
Class 9 Science: Sound - Leverage Edu
1 MARK QUESTIONS Question.1 What is SONAR? [SAII-2014] Answer.SONAR (Sound Navigation And Ranging) is a technique for determining water depth and locating underwater objects, such as reefs, submarines, and schools of fish. Question.2 Define one hertz. [SAII-2013] Answer.One hertz is one vibration per … Zobacz więcej Question.1 The given graph (Fig.)shows the displacement versus time relation for a disturbance travelling with velocity of 1500 ms-1. Calculate the wavelength of the disturbance. Answer. Question.2 Which of the … Zobacz więcej Question.1 How do you account for the fact that two strings can be used to give notes of the same pitch and loudness but of different quality? Answer.The ‘quality’ of a given note is determined by the overall effect of the … Zobacz więcej Question.1. 20 waves pass through a point in 2 seconds. If the distance between one crest and adjacent trough is 1.5 m. Calculate (a) the frequency. (b) the wavelength. … Zobacz więcej Question.1 Name the subjective property of sound related to its frequency and of light related to its wavelength. [SAII-2013] Answer. The subjective property of sound waves, related … Zobacz więcej WitrynaThe Sound of Music Class 9 Important Questions Short Answer Type Questions Part – 1 Question 1: When was Evelyn’s deafness first noticed? When was it confirmed? … Witryna28 sie 2024 · Sound Class 9 Extra Questions Numericals Question 1. The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the … daikin intergas monobloc hybride