Question

Time periods of vibation of two bar magnets in sum and
difference positions are 4 sec and 6 sec respectively. The
ratio of their magnetic moments M₁ / M₂ is
(a) 6 : 4 (b) 30 : 16
(c) 2 . 6 : 1 (d) 1 . 5 : 1

Answer 1

Explanation:

M

1

=

T

2

2

−T

1

2

T

2

2

+T

1

2

=

6

2

−4

2

6

2

+4

2

=

20

52

=(2:6:1)

Answer 2

Answer:

(c) 2 . 6 : 1

Explanation:

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