A magnet is brought near three pins X, Y and Z made up of three different materials.
Which option is the most suitable regarding the material used to make pins X, Y and Z?
A
Pin X - Steel
Pin Y - Iron
Pin Z - Plastic
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B
Pin X - Plastic
Pin Y - Nickel
Pin Z - Wood
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C
Pin X - Iron
Pin Y - Steel
Pin Z - Nickel
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D
Pin X - Silver
Pin Y - Iron
Pin Z - Steel
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Solution
The correct option is D Pin X - Silver
Pin Y - Iron
Pin Z - Steel The pin X does not get attracted to the magnet. Hence, it is a non-magnetic material. It can be silver, wood or plastic. Pin Y and pin Z are attracted by the magnet, so they are magnetic materials like iron, nickel, steel, etc. Thus, the most possible combination is: X- Silver Y- Iron Z- Steel.