Two short magnets have equal pole strengths but one is
twice as long as the other. The shorter magnet is placed 20
cms in tan A position from the compass needle. The longer
magnet must be placed on the other side of the magnetometer
for no deflection at a distance equal to
(a) 20 cms (b) 20 (2)¹/³ cms
(c) 20 (2)²/³ cms (d) 20 (2)³/³ cms
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therefore the correct answer is option b
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Answer:
pakiza is correct (perfect answer)
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