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Electrostatics

Good evening sir...
How did we write equation 1, 2.
18n= l . &
16(n+1)=l .
How sir explain it

Question image for Good evening sir... How did we write equation 1,

raju nagula

8 Years agoGrade

1 Answer

Venkat

8 Years ago

Fact: the distance between ends of a fixed string is one half-wavelength. Hence, the relation is

$\lambda_n=\frac{2l}{n} \\l=(\frac{\lambda_n}{2})n$

Consider above fact that length is half of lambda n. Hence, $(\frac{\lambda_n}{2})$ = 18 and 16 for second equation.

So for equation (1) , l = 18n,

Second equation, For consective nodes (or n+1)

l = 16(n+1)

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