Smartphone and the type of wave?

AI Thread Summary
Smartphones receive sound waves as longitudinal waves when a person speaks into them. The discussion clarifies that sound waves, which are longitudinal, are transmitted into the phone during a conversation. In contrast, radio waves, which are transverse waves, are used for wireless communication but are not the same as sound waves. The conversation emphasizes the distinction between these two types of waves and their respective roles in communication. Overall, the smartphone primarily receives longitudinal sound waves during a call.
Betadine
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Homework Statement



A person speaks into a smartphone.

What type of wave does the smartphone receive?


2. The attempt at a solution

I thought the answer is longitudinal wave. Is that right?

Or does the smartphone receive radio waves?
 
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Betadine said:
I thought the answer is longitudinal wave. Is that right?
A longitudinal wave of what?

Or does the smartphone receive radio waves?
Do you "speak" with radio waves?

Note that those two things belong to completely different concepts.
 
mfb said:
A longitudinal wave of what?

Do you "speak" with radio waves?

Note that those two things belong to completely different concepts.


Dear Sir, thank you for the reply and clarification.

The actual question is as follows:
David switched on his television set and radio. As he was resting, he received a phone on his smartphone. He picked it up and began talking over the phone.
In the above situation, how many of the devices are receiving signals in longitudinal wave?

Could you please kindly help me with the question?
 
Sure. What did you find out so far?
 
mfb said:
Sure. What did you find out so far?

I found out that sound waves are longitudinal waves; radio waves are transverse waves.

My thinking is that as the boy speaks into the phone, sound waves are transmitted into the phone.

So my guess is that the phone is receiving longitudinal waves?
 
Betadine said:
I found out that sound waves are longitudinal waves; radio waves are transverse waves.
Good.

My thinking is that as the boy speaks into the phone, sound waves are transmitted into the phone.

So my guess is that the phone is receiving longitudinal waves?
Sure
 
mfb said:
Good.

Sure

Thank you!
 
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