Important question of sound class 9
WitrynaThe vital topics included in Chapter 12 Class 9 Science important questions are: Sound; Production of Sound; Propagation of Sound; Reflection of Sound; Range of …
Important question of sound class 9
Did you know?
WitrynaSound Formula for class 9 Science Formulas . Sound. Sound is mechanical energy, which produces sensation of hearing.; Sound is produced due to the vibration of … 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
Witryna1 sty 2024 · Students should prepare for the examination by solving CBSE Class 9 Sound MCQ with answers given below. Question 1. The product of time-period and frequency is. Question 2. Sound waves are. Question 3. The time period of a simple pendulum in a spacecraft orbiting the earth is. Question 4. 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 …
Witrynanumerical questions and covers all essential concepts as per the latest syllabus of ICSE Class 9. Numerical problems are one of the most daunting yet scoring questions in the Physics Examination papers and with proper guidance, students can score maximum marks in these types of questions. This book includes important formulas, essential ... Witryna15 lip 2024 · Question 1: A violin and a flute may both be played at the same time in an orchestra. Both sounds travel through the same medium, that is, air and arrive at our ears at the same time. Both sounds travel at the same speed irrespective of the source. But the sounds receive are different. This is due to the different characteristics …
Witryna25 maj 2024 · 3. Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium. Answer. Frequency of the sound wave, ν= 220 Hz. Speed of the sound wave, v = 440 m s -1. For a sound wave, Speed = Wavelength x Frequencyv = λ x ν. ∴ λ= v / ν = 440 / 220 = 2m. Hence, the wavelength of the …
WitrynaImportant Questions for CBSE Class 9 Science Chapter 12 – Sound is a very effective resource for the students who are aiming to ace the exams. These questions cover … simple map of new englandWitryna16 mar 2024 · Answer. The human ear has 3 parts-. Outer Ear - It collects sound from surroundings. Middle Ear - It amplifies the vibrations. Inner Ear- It converts sound into electrical signals. The outer ear called pinna collects sound from the surroundings. The collected sound passes through auditory canal. At the end of the auditory call, there … simple map of north americaWitrynaThe different uses of petroleum products are: a. petrol is used as motor fuel, Aviation fuel and solvent for dry cleaningb. kerosene is used as fuel for stoves, lamps and jet aircraftsc. Diesel is used as fuel foe heavy motor vehicles, electric generators etcd. paraffin wax is used as ointment, candles and Vaseline. Prev Q20. 1. .. simple map of northern californiaWitrynaThe Sound of Music Part 1 class 9 English beehive chapter 2 Extra Questions and Answers are available here. All these questions are divided into short type questions answers, long type question answers and extract based questions. These Class 9 extra questions are prepared by our expert teachers. simple map of mexicoWitryna16 mar 2024 · Numericals for Class 9 Science Chapter 12 Sound. Q.1. A boy hears an echo of his own voice from a distant hill after 1 s. the speed of sound is 340m/s. What … simple map of nycWitryna30 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) simple map of new mexicoWitryna23 lis 2024 · Important Questions of Sound Class 9 Question. In SONAR, we use (a) ultrasonic waves (b) infrasonic waves (c) radio waves (d) audible sound waves … simple map of new york state