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Temka [501]
3 years ago
10

One major difference between plant and animal cells is that plant cells are the only ones with A) cellulose. B) lysosomes. C) nu

clei. D) vacuoles.
Physics
2 answers:
stira [4]3 years ago
5 0
The correct answer is A .
I am Lyosha [343]3 years ago
3 0
Answer is A  and that has to be correct
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3 years ago
A grating whose slits are 3.2x10^-4 cm apart produces a third-order fringe at a 25.°0 angle. What is the wavelength of light tha
Ber [7]

Answer:

The light used has a wavelenght of 4.51×10^-7 m.

Explanation:

let:

n be the order fringe

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then, by Bragg's law:

n×λ = d×sin(Ф)

λ = d×sin(Ф)/n

λ = (3.2×10^-4 cm)×sin(25.0°)/3

  = 4.51×10^-5 cm

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Therefore, the light used has a wavelenght of 4.51×10^-7 m.

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