Assertion: A compass needle when placed on the magnetic north pole of the earth rotates in vertical direction. Reason: The earth has only horizontal component of its magnetic field at the north poles.
A
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B
If both assertion and reason are true but reason is not the correct explanation of the assertion
C
f assertion is true but reason is false.
D
If the assertion and r eason both are false
Text Solution
Verified by Experts
The correct Answer is:
D
Topper's Solved these Questions
MAGNETISM
ERRORLESS |Exercise Magnet and it s Properties|15 Videos
MAGNETISM
ERRORLESS |Exercise Earth Magnetism|8 Videos
MAGNETIC EFFECT OF CURRENT
ERRORLESS |Exercise Exercise|394 Videos
RAY OPTICS
ERRORLESS |Exercise SET|25 Videos
Similar Questions
Explore conceptually related problems
What is the value of the horizontal component of the earth's magnetic field at the poles?
The north pole of earth magnet is in the :
Assertion: If a compass needle be kept at magnetic north pole of the earth, the compass needle may stay in way direction. Reason: Dip needle will stay vertical at the north pole of earth.
Let V and H be the vertical and horizontal components of earth's magnetic field at any point on earth. Near the north pole
At the magnetic north pole of the earth, the value of horizontal component of earth's magnetic field and angle of dip are, respectively