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प्रश्न
Circle the odd ones and give reason
पर्याय
Iron nail
pins
rubber tube
needle
उत्तर
Rubber tube.
Reason: Rubber tube is a non-magnetic substance, others are magnetic substances.
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संबंधित प्रश्न
Select the correct answer
If we suspend a magnet freely, it will settle in.
What are magnetic and non-magnetic substances? Give two examples of each.
Distinguish between
Magnetic and non-magnetic materials.
It is advised to keep the magnets away from television, mobiles, CD and computers Explain why?
Paper is not a ______ material.
A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Affect observed in each case is stated in Column I. Possible reasons for the observed affects are mentioned in Column II.
Match the statements given in Column I with those in Column II.
| Column I | Column II |
| Boat gets attracted towards the magnet | Boat is fitted with a magnet with north pole towards its head |
| Boat is not affected by the magnet | Boat is fitted with a magnet with south pole towards its head |
| Boat moves towards the magnet if north pole of the magnet is brought near its head | Boat has a small magnet fixed along its length |
| Boat moves away from the magnet when north pole is brought near its head | Boat is made of magnetic material |
| Boat floats without changing its direction | Boat is made up non-magnetic material |
Analogy:
Magnetic substance: Attracted by magnets
Non-magnetic substance: ______.
Among the following which one is a magnetic substance?
What are non-magnetic substances?
Suggest an activity to prepare a magnetic compass by using an iron needle and a bar magnet.
