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प्रश्न
Can sound waves pass through vacuum?
एक पंक्ति में उत्तर
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उत्तर
Sound waves being mechanical waves need a material medium for their propagation, they cannot travel in vacuum.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
What is a longitudinal wave ?
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
Distinguish between crest and trough.
Which has a greater speed: mechanical wave or electromagnetic wave?
Complete the following sentences :
Sound cannot travel through __________, but it requires a ___________.
What do you understand by the term sound energy?
Is sound a form of energy?
Lightning can be seen the moment it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs? (speed of sound = 330 m/s).
The speed of sound in air at 0°C is ______.
