Beat Frequency: Find Frequency with Wavelength of 3.141m & 3.135m

AI Thread Summary
To find the beat frequency of radio waves with wavelengths of 3.141m and 3.135m, the frequencies of both waves must first be calculated using the speed of light, which is approximately 3 x 10^8 m/s. The formula for frequency is f = c/λ, where c is the speed of light and λ is the wavelength. After determining the frequencies, the beat frequency can be calculated using the formula Fb = |f1 - f2|. The discussion emphasizes the need to understand the speed of electromagnetic waves to solve the problem effectively. Understanding these concepts is crucial for calculating beat frequencies in wave interactions.
adashiu
Messages
21
Reaction score
0

Homework Statement



What would be the beat frequency if radio waves of wavelenght 3.141m and 3.135 are mixed?

The Attempt at a Solution



I need frequency of wave1 and wave2, because Fb=|f1-f2|
But i don't have nothing but wavelength...
Any hints?
 
Physics news on Phys.org
Can you work out the frequency?

HINT: At what speed do radio waves travel?
 
I have no idea... Where can I find that?
 
adashiu said:
I have no idea... Where can I find that?
Another hint: Radio waves are electromagnetic waves. At what speed do all EM waves travel at?
 
Iw as trying but no idea at all...
 
What speed does light travel at?
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »

Similar threads

What frequency will the bat hear?
Replies
15
Views
960
Beat frequency heard from two tuning forks
Replies
4
Views
3K
Solving Beat Frequency with Tuning Forks: f2 = f1 ± fb
Replies
6
Views
5K
How do you find speed given the beat frequency?
Replies
3
Views
3K
A question about wave motion and beat frequency
Replies
43
Views
7K
Travelling towards a Canyon Wall: Calculating Beat Frequency
Replies
3
Views
2K
What Was the Initial Frequency of the Trumpet Player?
Replies
2
Views
5K
Finding frequency of moving sources with beats
Replies
2
Views
3K
Harmonics, Notes, Beat frequency
Replies
2
Views
2K
What is the tension of the string needed for a 440 Hz fundamental frequency?
Replies
7
Views
2K

Hot Threads

Recent Insights

Back
Top