P Q R
Magnets Magnetic Substance Non Magnetic Substance
After repeated rubbing with a magnet in the same direction, a piece of substance fails to get magnetised, it should be placed in the group(s) :

P & Q

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Q & R

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Solution

The correct option is D R
If the substance can not be magnetized by repeated rubbing with a magnet in the same direction, then the substance is a non-magnetic substance. Non-magnetic materials are materials that are not attracted to a magnet. Examples include plastic, water, silver, paper, gold, etc. Hence it will fall into the R category.

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Similar questions

P	Q	R
Magnets	Magnetic Substance	Non Magnetic Substance

P	Q	R
Magnets	Magnetic Substance	Non Magnetic Substance

A ferromagnetic substance becomes a permanent magnet when it is placed in a magnetic field because ..........

(a) all the domains get oriented in the direction of a magnetic field

(b) all the domains get oriented in the direction opposite to the direction of a magnetic field

(d) domains are not affected by a magnetic field

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