3 years ago

PLSSS HELPPPPPM ,MEEEE FOR 25 POINTS PLSSSSSSSSSS

1 answer:

5 0

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The scientist who found a way to measure the distance between the sun and Venus which

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Mila both 2 kg of cheese in the market to be used for her Mac and cheese recipe. How many pounds does a 2.00 kg of cheese weigh?

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A double slit that is illuminated with coherent light of wavelength 644 nm produces a pattern of bright and dark fringes on a sc

shutvik [7]

Answer:

$2.77$ cm

Explanation:

$d$ = separation between the slits = 2783 x 10⁻⁹ m

$\lambda$ = wavelength of coherent light = 644 nm = 644 x 10⁻⁹ m

$D$ = Distance of the screen = 6 cm = 0.06 m

$y_{n}$ = Position of nth bright fringe

Position of nth bright fringe is given as

$y_{n} = \frac{nD\lambda }{d}$

for n = 2

$y_{2} = \frac{nD\lambda }{d}$

$y_{2} = \frac{(2)(0.06)(644\times10^{-9}))}{2783\times10^{-9}}$

$y_{2} = 0.0278$ m

for n = 4

$y_{4} = \frac{nD\lambda }{d}$

$y_{4} = \frac{(4)(0.06)(644\times10^{-9}))}{2783\times10^{-9}}$

$y_{4} = 0.0555$ m

Distance between 4th and 2nd bright fringes is given as

$w = y_{4} - y_{2} = 0.0555 - 0.0278 = 0.0277 m$

$w = 2.77$ cm

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3 years ago