The line of sight is kept as high above ground surface - Practice (English)

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The line of sight is kept as high above ground surface - Practice (English) | ObjectiveMcq

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The line of sight is kept as high above ground surface as possible to minimise the error in theobserved angles due to

Correct Answer:

(D) Both shimmering and horizontal refraction

Explanation:

Both shimmering and horizontal refraction

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