Question

which scientific instruments helped the sailors in their sea voyage to india

Answer 1

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●Scientific instrument used was MAGNETIC COMPASS.

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Answer 2

Answer:

The mariner's compass or magnetic compass.

Explanation:

The magnetic compass is the man-made navigational tool which sailors used during the sea voyage to India. The magnetic compass was primarily used during the absence of the Sun. Thus, the compass helped to identify the direction.  Few of the other tools which were used are- Nautical Charts, astrolabe and quadrant.