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प्रश्न
What do you understand by the term ‘ultrasonic vibration’?
एका वाक्यात उत्तर
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उत्तर
Ultrasonic vibrations are the vibration with a frequency greater than 20 KHz. Human ear cannot detect the ultrasonic vibration.
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The Speed of Travelling Waves - Factors Affecting Speed of Sound
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Acoustics - Evaluation [पृष्ठ ७२]
APPEARS IN
संबंधित प्रश्न
Mark the correct choice as
- Assertion: The change in air pressure affects the speed of sound.
- Reason: The speed of sound in a gas is proportional to the square of the pressure
Mark the correct choice as
- Assertion: Sound travels faster in solids than in gases.
- Reason: Solid posses a greater density than that of gases.
What are the factors that affect the speed of sound in gases?
