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Elena L [17]
3 years ago
12

Find the distance between two slits that produces the first minimum for 410-nm violet light at an angle of 45.0°

Physics
1 answer:
Tpy6a [65]3 years ago
6 0

Answer:

Distance between slits, d=2.89\times 10^{-7}\ m  

Explanation:

It is given that,

Wavelength, \lambda=410\ nm=410\times 10^{-9}\ m

Angle, \theta=45

We need to find the distance between two slits that produces first minimum. The equation for the destructive interference is given by :

d\ sin\theta=(n+\dfrac{1}{2})\lambda

For first minimum, n = 0

So, d\ sin\theta=(\dfrac{1}{2})\lambda

d is the distance between slits

So, d=\dfrac{1/2\lambda}{sin\theta}

d=\dfrac{1/2\times 410\times 10^{-9}}{sin(45)}

d=2.89\times 10^{-7}\ m

So, the distance between two slits is 2.89\times 10^{-7}\ m. Hence, this is the required solution.

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What can you infer about the changes in the environment over time at the mystery fossil dig site? Record your inferences in the
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the fossil informed us about the climatic and geographical changes that occurs in the environment over time.

<h3>What the mystery fossil dig site informed us about environment?</h3>

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An object is placed in front of a convex lens of a length 10cm. What is the nature of the image formed if the object distance is
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{\mathfrak{\underline{\purple{\:\:\: Given:-\:\:\:}}}} \\ \\

\:\:\:\:\bullet\:\:\:\sf{Focal\:length=10\:cm}

\:\:\:\:\bullet\:\:\:\sf{Object \ distance = -15\:cm}

\\

{\mathfrak{\underline{\purple{\:\:\:To \:Find:-\:\:\:}}}} \\ \\

\:\:\:\:\bullet\:\:\:\sf{Nature \: of \:the\:image}

\\

{\mathfrak{\underline{\purple{\:\:\: Solution:-\:\:\:}}}} \\ \\

<h3>☯ <u>By using formula of Lens</u> </h3>

\\

\dashrightarrow\:\: {\boxed{\sf{\dfrac{1}{u} + \dfrac{1}{v} = \dfrac{1}{f}}}}

\\

\dashrightarrow\:\: \sf{\dfrac{1}{v}-\dfrac{1}{-15}=\dfrac{1}{10}}

\\

\dashrightarrow\:\: \sf{\dfrac{1}{v}+\dfrac{1}{15}=\dfrac{1}{10}}

\\

\dashrightarrow\:\: \sf{\dfrac{1}{v} = \dfrac{1}{10} - \dfrac{1}{15}}

\\

\dashrightarrow\:\: \sf{\dfrac{1}{v} = \dfrac{1}{30}}

\\

\dashrightarrow\:\: \sf{ v = 30 \ cm}

\\

<h3>☯ <u>Now, Finding the magnification </u></h3>

\\

\dashrightarrow\:\: \sf{ m = \dfrac{-30}{-15}}

\\

\dashrightarrow\:\: \sf{m = -2}

\\

<h3>☯ <u>Hence</u>,\\</h3>

\:\:\:\:\star\:\:\:\sf{Image \ distance = 30 \ cm}

\:\:\:\:\star\:\:\:\sf{Nature = Real \ \& \ inverted}

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