Question

The magnetic declination at a place if the magnetic bearing of sun at noon is 352 40’ is​

Answer 1

Answer:

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Answer 2

The magnetic declination is 7°20'.

Explanation:

• The angle between the true bearing and magnetic bearing on the horizontal plane is known as magnetic declination.  
• The angle varies from place to place and from time to time.
• If the magnetic bearing is around 0° or 180°, then the sun is in the south, and if the magnetic bearing is around 360° or 0°, then the sun is in the north.
• It is given that the magnetic bearing of the sun at noon at a place is 352°40'.
• The magnetic declination is given by the formula                                  Magnetic Declination  = True Bearing - Magnetic Bearing

• The true bearing of the sun at noon is 360° or 0, so the position of the sun is in the north.
• By substituting the values, we get

        Magnetic declination = 360°- 352°40' = 7°20'

• ∴ The magnetic declination at a place is 7°20' E