Destructive interference formula is given as (2n+1)lambda/2 in NCERT. But I found out to be as (2n-1)lambda/2. Which one is correct?

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Solution

$\frac{(2 n - 1) λ}{2}, p u t n = 1 ⟶ w e g e t, \frac{λ}{2}$ , in case of 2n-1 , n=1,2,3,4,5,6....
$\frac{(2 n + 1) λ}{2}, p u t n = 0 ⟶ w e g e t, \frac{λ}{2}$ , in case of 2n+1, n=0,1,2,3,4,5,...

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In videos destructive interference is given (2n+ 1)lambda/2 where as in board book it is given by (2n - 1)lambda/2. Which of these is correct for destructive interference?

Q. Match the condition for the type of interference:
1. Constructive I.

(2 n + 1) \frac{λ}{2}

2. Destructive II.

(2 n) λ

Q. Let the function

f (x)

be defined as below

f (x) = sin^{- 1} λ + x^{2}, 0 < x < 1

2 x, x \geq 1

f (x)

can have a minimum at

x = 1

if the value of

λ

Q. In 2n, 2 is known as the

Q. If

z = - 2 + 2 \sqrt{3} i,

then

z^{2 n} + 2^{2 n} z^{n} + 2^{4 n}

may be equal to

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Destructive interference formula is given as (2n+1)lambda/2 in NCERT. But I found out to be as (2n-1)lambda/2. Which one is correct?

(2n−1)λ2,putn=1⟶weget,λ2, in case of 2n-1 , n=1,2,3,4,5,6....(2n+1)λ2,putn=0⟶weget,λ2 , in case of 2n+1, n=0,1,2,3,4,5,...

$\frac{(2 n - 1) λ}{2}, p u t n = 1 ⟶ w e g e t, \frac{λ}{2}$ , in case of 2n-1 , n=1,2,3,4,5,6....
$\frac{(2 n + 1) λ}{2}, p u t n = 0 ⟶ w e g e t, \frac{λ}{2}$ , in case of 2n+1, n=0,1,2,3,4,5,...