00:01
Hello, in this question let's first write the given values.
00:04
We have speed v which is equal to 199 meter per second.
00:09
Then we have the wave number k which is equal to 2 radian per meter.
00:15
Now we want to find the value of wavelength lambda and frequency f.
00:20
So let's start with the first part wavelength.
00:24
For that we can write wave number k which is equal to 2 pi divided by lambda.
00:29
Therefore, we can write the equation of wavelength lambda which is equals to 2 pi divided by k.
00:37
Now we will substitute the value of wave number k here, that is 2.
00:42
On simplification, we get the answer that is 3 .14 meter.
00:47
This is the first answer...