Given below are two statements labelled as Assertion (A) and Reason (R

1.	Given below are two statements labelled as Assertion (A) and Reason (R) Assertion(A): A magnetic needle free to rotate in a vertical plane, orients itself (with its axis) vertical at the poles of the earth. Reason (R): At the poles of the earth the horizontal component of earth’s magnetic field will be zero. Select the most appropriate answer from the options given below: (i) Both A and R are true and R is the correct explanation of A (ii) Both A and R are true but R is not the correct explanation of A. (iii) A is true but R is false. (iv) A is false and R is also false.
Answer» Answer is (i) Both A and R are true and R is the correct explanation of A The given statement is correct and reason is the correct explanation of the above statement. At poles, magnetic needle orients itself vertically because horizontal components of earth’s field is zero there.

Given below are two statements labelled as Assertion (A) and Reason (R) Assertion(A): A magnetic needle free to rotate in a vertical plane, orients itself (with its axis) vertical at the poles of the earth. Reason (R): At the poles of the earth the horizontal component of earth’s magnetic field will be zero. Select the most appropriate answer from the options given below: (i) Both A and R are true and R is the correct explanation of A (ii) Both A and R are true but R is not the correct explanation of A. (iii) A is true but R is false. (iv) A is false and R is also false.

Answer»

Answer is (i) Both A and R are true and R is the correct explanation of A

The given statement is correct and reason is the correct explanation of the above statement. At poles, magnetic needle orients itself vertically because horizontal components of earth’s field is zero there.

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