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andrey2020 [161]
4 years ago
14

Question 1 Unsaved

Physics
1 answer:
saul85 [17]4 years ago
4 0
1. A
2. B
3. D
4. False
5. False
6. B
7. A
8. C
9. D
10. B

I took the test and made an A, so I am pretty sure that they are correct.
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It took 3.5 hours for a train to travel the distance between two cities at a velocity
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Answer:

420

Explanation:

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Two sources of light of wavelength 710 nm are 9 m away from a pinhole of diameter 1 mm. How far apart must the sources be for th
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Answer:

7.8 mm

Explanation:

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Rayleigh Criterion

D=1.22\frac{L\lambda}{d}\\\Rightarrow D=1.22\frac{9\times 710\times 10^{-9}}{1\times 10^{-3}}\\\Rightarrow D=0.0077\ m=7.8\ mm

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