Which of the following statements is incorrec | vedclass

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(D) $1$. The angle of dip at the magnetic poles is $90^o$,which is correct.$2$. Cosmic particles (charged particles) are deflected by the Earth's magn

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The magnetic meridian is a straight line.

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(D) $1$. The angle of dip at the magnetic poles is $90^o$,which is correct.$2$. Cosmic particles (charged particles) are deflected by the Earth's magnetic field. They are guided towards the magnetic poles and are prevented from reaching the magnetic equator,which is correct.$3$. Since cosmic particles are guided towards the magnetic poles by the Earth's magnetic field,their density is indeed maximum at the poles,which is correct.$4$. $A$ magnetic meridian is a vertical plane passing through the magnetic axis of the Earth,not a straight line. Therefore,the statement that the magnetic meridian is a straight line is incorrect.

Which of the following statements is incorrect?

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