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allochka39001 [22]
3 years ago
9

Help Easy Questions I will give you brainliset if you help plsss!!!!!!!!!!!!!!!!!!!!!

Geography
1 answer:
Serggg [28]3 years ago
4 0

Answer:

1.A 2.D 3.C 4.B

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Question 6 1 pts What is the angular resolution of a 2.0 m telescope observing at a wavelength of 650 nm? Choose the closest ans
lubasha [3.4K]

Answer:

Option (C)

Explanation:

The angular resolution formula,

Sin A= 0.25 (Wavelength ÷ Diameter)

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Here, wavelength (W)= 650 nm = 0.65 μm (converting nanometer into micrometer)

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now, according to the formula,

\sin A=0.25\times [\dfrac{wavelength}{diameter}]\\\\\sin A=0.25\times \dfrac{0.65\ \mu m}{2\ m}\\\\\sin A=0.08125''\\\\\sin A\approx 0.082''

Thus, the correct answer is option (C) i.e. 0.082 arc second.

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3 years ago
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Answer:

Yes

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