Question

What is magnetic declination and what are different types of variation in declination?

Answer 1

Explanation:

Magnetic Declination :

It is also known as Angle of declination .

At any point on earth's surface the angle between the Geographical meridian and Magnetic meridian is called angle of declination or magnetic declination.

Different type of variation in Declination :

1. Periodic Variation :

The periodic variation are of three type :

i. Secular variation

ii. Annual Variation

iii. Diurnal Variation.

2. Irregular Variation.

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Answer 2

Answer:

Magnetic declination :

Angle between geographical meridian and magentic meridian.

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