CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

The magnetic bearing of a line AB was N5930W in the year 1967, when the declination was 410E. If the present declination is 3W, the whole circle bearing of the line is

A
30740
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
29920
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
29320
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
30140
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 30740

MN1old magnetic north

MN2present magnetic north

Whole circle bearing of line AB from magnetic north

=3605930

=30030

True bearing=Magnetic bearing+declination

=30030+410

=30440

At present,

declination=3W=3

WCB of line (Magnetic bearing)=True bearingdeclination

=30440(3)

=30740

flag
Suggest Corrections
thumbs-up
4
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Characterising Earth’s Field
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon