Noise pollution class 10 | 10th class Physics | punjab, federal, kpk, sindh, balochistan board скачать в хорошем качестве

Noise pollution class 10 | 10th class Physics | punjab, federal, kpk, sindh, balochistan board

noise pollution in urdu 10th class physics chapter 11. noise pollution physics wallah sabaq free online classes ch 11 physics class 10. queries solved in this video 1. what is noise? 2. what is music? 3. what is difference between music and noise? 4. what are bad effects of noise on human helth? 5. what are causes of noise ? 6. what are effect of noise? 7. what is safe level of sound? 8. what is safe level of noise ? 9. how to reduce noise? Characteristics of sound 10th class physics chapter 11. Pitch of sound, quality of sound and loudness of sound. Free online classes of physics 10th class. Related terms 1. Characteristics of sound 2. Quality of sound 3. Pitch of sound 4. Loudness of sound 5. Characteristics of sound by sabaq 6. Sound 7. Chapter no 11 8. Class 10th 9. Class 10th physics 10. Physics lectures 11. Physics videos 12. Atif Ahmad Official 13. 10th class physics video lectures Here i am going to teach the topic sound produced by vibrating bodies 10th class physics in urdu hindi very easy lecture of physics. Prove longitudinal nature of sound waves in urdu/ hindi. 10th class physics chapter 11 sound. In the previous lecture you have learned the following Mechanical nature of sound and how can we prove mechanical nature of sound in 10th class physics chapter 11 Queries solved in previous two videos 1. What is mechanical nature of sound ? 2. Prove mechanical nature of sound 3. How can we say sound have mechanical nature? 5. What is nature of sound waves ? 6. Explain nature of sound in urdu 7. Explain nature of sound in hindi 8. Prove mechanical nature of sound sabaq in urdu 9. Prove mechanical nature of sound ilm ki in urdu 10. Prove mechanical nature of sound in urdu sabaq 11. Memechanical nature of sound in urdu sabaq 12 prove longitudinal nature of sound 13. How can we say that sound hy longitudinal nature? 14. What is tuning fork ? 15. Prove longitudinal nature of sound with the help of tuning fork 16. What is difference between longitudinal and mechanical waves ? 17. physics wallah topic Related searches 1. Mechanical nature of sound 2. Mechanical nature of sound in urdu 3. Mechanical nature of sound in hindi 4. Mechanical nature of sound sabaq 5. Mechanical nature of sound ilm 6. Mechanical nature of sound ilm ki 7. Prove mechanical nature of sound urdu 8. Prove mechanical nature of sound hindi 9. Prove mechanical nature of sabaq 10. Prove mechanical nature of sound ilm 11. Prove longitudinal nature of sound urdu 12. Prove longitudinal nature of sound hindi 13. Prove longitudinal nature of sound sabaq 14. Prove longitudinal nature of sound ilm 15. Prove longitudinal nature of sound by sabaq, 16. Sound is produced by vibrating bodies in urdu 17. Sound is produced by vibrating bodies in hindi 18. Sound is produced by vibrating bodies sabaq 19. Sound is produced by vibrating bodies ilm ki 20. Sound is produced by vib 11.5 NOISE POLLUTION We enjoy the programmes on radio or television by hearing sounds of different qualities. In musical programmes, we hear sound produced by musical instruments such as flute, harmonium, violin, drum etc. Sound of these instruments has pleasant effect on our ears. Such sounds which are pleasant to our ears are called musical sounds. However, some sounds produce unpleasant effects on our ears such as sound of machinery, the slamming of a door, and sounds of traffic in big cities. Sound which has jarring and unpleasant effect on our ears is called noise. Noise corresponds to irregular and sudden vibrations produced by some sounds. Noise pollution has become a major issue of concern in big cities. Noise is an undesirable sound that is harmful for health of human and other species. Transportation equipment and heavy machinery are the main sources of noise pollution. For example, noise of machinery in industrial areas, loud vehicle horns, hooters and alarms. Noise has negative effects on human health as it can cause conditions such as hearing loss, sleep disturbances, aggression, hypertension, high stress levels. Noise can also cause accidents by interfering with communication and warning signals. A safe level of noise depends on two factors: the level (volume) of the noise; and the period of exposure to the noise. The level of noise recommended in most countries is usually 85-90 dB over an eight-hour workday. Noise pollution can be reduced to acceptable level by replacing the noisy machinery with environment friendly machinery and equipments, putting sound-reducing barriers, or u #noisePollution #noise #music #10thphysics #chapter11 #ch11 #freeOnlineClasses #freevideolectures #noisePollution10thPhysics