To shield an instrument from external magnetic field, it is placed inside a cabin made of (1) Wood
(3) Diamagnetic substances
(2) Plastic (4) Iron
Sol. Answer (4) but why????

Question

To shield an instrument from external magnetic field, it is placed
inside a cabin made of (1) Wood
(3) Diamagnetic substances
(2) Plastic (4) Iron
Sol Answer (4) but why????

Sanjay Singh · Accepted Answer

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To shield an instrument from external magnetic field, it is placed inside a cabin made of (1) Wood (3) Diamagnetic substances (2) Plastic (4) Iron Sol. Answer (4) but why????

To shield an instrument from external magnetic field, it is placed inside a cabin made of (1) Wood
(3) Diamagnetic substances
(2) Plastic (4) Iron
Sol. Answer (4) but why????