Advertisements
Advertisements
Question
Two astronauts are floating close to each other in space. Can they talk to each other without using any special device? Give reasons.
Advertisements
Solution
No, they cannot talk to each other without using any special device because there is no medium in space and sound needs medium to travel.
APPEARS IN
RELATED QUESTIONS
How is loudness of sound related to the intensity of wave producing it?
Name the unit used to measure the sound level.
If the amplitude and frequency of a sound wave are increased, which of the following is true?
What are the properties of sound?
Define the following term.
Loudness
The loudness of sound depends on
Does any part of our body vibrate when we speak? Name the part.
An alarm bell is kept inside a vessel as shown in the following figure. A person standing close to it can distinctly hear the sound of alarm. Now, if the air inside the vessel is removed completely, how will the loudness of alarm get affected for the same person?
Loudness equal to (or) greater than ______ can be painful to the ear.
