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Sound is produced when an object vibrates, causing the surrounding air molecules to also vibrate. These vibrations create compressions and rarefactions in the medium, allowing the sound to travel as a longitudinal wave. Example: A vibrating tuning fork creates disturbances in air molecules, forming a wave that reaches our ears. The eardrum detects these vibrations … Read more
At night, the air near the ground is cooler than the upper layers, causing sound waves to bend downward due to temperature inversion, making them travel farther and clearer. Related Questions: Why does sound require a medium to travel? What is the effect of humidity on the speed of sound? What is the difference between … Read more
Pitch is the perception of frequency. Higher frequency sounds have a higher pitch (e.g., a whistle), while lower frequency sounds have a lower pitch (e.g., drum beats). Related Questions: Why does sound require a medium to travel? What is the effect of humidity on the speed of sound? What is the difference between audible, infrasonic, … Read more
Audible sound: Frequency range 20 Hz to 20,000 Hz (heard by humans). Infrasonic sound: Frequency less than 20 Hz (e.g., earthquake vibrations). Ultrasonic sound: Frequency greater than 20,000 Hz (e.g., used in medical imaging). Related Questions: Why does sound require a medium to travel? What is the effect of humidity on the speed of sound? … Read more
Higher humidity increases the speed of sound because water vapor is less dense than dry air, reducing the overall density of the medium and allowing sound waves to move faster. Related Questions: Why does sound require a medium to travel? What is the difference between audible, infrasonic, and ultrasonic sounds? What is the relation between … Read more
Sound is a mechanical wave, meaning it needs a medium (solid, liquid, or gas) to propagate. Unlike electromagnetic waves, it cannot travel in a vacuum because it requires particle vibrations to transmit energy. Related Questions: Physics 10 MCQ Show that a vibrating mass-spring system performs simple harmonic motion. What is its time period? On … Read more