Advertisements
Advertisements
प्रश्न
Can you hear each other in a dark room?
एका वाक्यात उत्तर
Advertisements
उत्तर
Yes, we can hear in the darkroom.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
How is sound produced ?
What is a longitudinal wave ?
What do you understand by sound signalling?
A boy fires a gun and hears the echo 2 seconds later. If he is 480 m away from a wall, calculate the velocity of sound in air.
What is a transverse wave? In which medium: solid, liquid or gas, can it be produced?
Answer the following question :
Can sound travel in vacuum?
Match the pairs.
| Group ‘A’ | Group ‘B’ |
| (a) Flute | (1) Frequency less than 20 Hz |
| (b) Frequency | (2) Frequency more than 20000 Hz |
| (c) Sound level | (3) Vibrations in the air |
| (d) Ultrasonic sound | (4) Measured in Hz |
| (e) Infrasonic sound | (5) Decibel |
What is sound? Explain with example how does sound travel in a medium.
Through which medium sound travels faster, iron or water? Give reason.
Describe with diagram, how compressions and rarefactions are produced.
