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displacement ...

Question

_______________displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.

Echo

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Parallax

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Triangulation

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None of These

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Solution

The correct option is B Parallax
Parallax displacement or difference in the apparent position of an object vied along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.

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α

C

β

0.4

m

30^{\circ}

12 : 3.

1

2

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