The earth's magnetic field was flipped by | vedclass

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Question

(b)

As, $1^{\circ}=(60 	imes 60) \,s$

It is given that in $10^5$ year, flip is $180^{\circ}$. $	herefore$ Average change in orientation per ye

Vedclass · Accepted Answer

$5$

Vedclass · Answer

(b)

As, $1^{\circ}=(60 	imes 60) \,s$

It is given that in $10^5$ year, flip is $180^{\circ}$. $	herefore$ Average change in orientation per year $=\frac{180}{10^5}$ degree

$=\frac{180}{10^5} 	imes 60 	imes 60 \,s =6.48 \,s$

It is closest to $5 \,s$.

The earth's magnetic field was flipped by $180^{\circ}$ a million years ago. This flip was relatively rapid and took $10^5 \,yrs$. Then, the average change in orientation per year during the flip was closest to ............ $s$

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