isogonic line वाक्य
"isogonic line" हिंदी में isogonic line in a sentenceउदाहरण वाक्य
- By convention, declination is positive when magnetic north is east of true north, and negative when it is to the west . " Isogonic lines " are lines on the Earth's surface along which the declination has the same constant value, and lines along which the declination is zero are called " agonic lines ".