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Two short magnets placed along the same ...

Two short magnets placed along the same axis with their like poles facing each other repel each other with a force which varies inversely as

A

`4 xx 25N`

B

`4 xx 4 xx 25N`

C

`4 xx 4 xx 4 xx 25N`

D

`4 xx 4 xx 4 xx 4 xx 25N`

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The correct Answer is:
D
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