
If a piece of metal was thought to be a magnet, which one of the following observations would offer conclusive evidence
A) It attracts a known magnet
B) It repels a known magnet
C) Neither (a) nor (b)
D) It attracts a steel screw driver
Answer
164.1k+ views
Hint:
Magnet is a substance which produces magnetic fields and attracts the same poles as well as repelling opposite poles. Attraction between two substances does not give us proper evidence whether they are magnetic or not. As one magnet and iron metal also attract each other.
Complete step by step solution:
It is also a hit and trial method question. Here we have to judge the option one by one logically. So, let’s start. But before starting let’s know some points about the magnet.
Magnets are objects that produce a magnetic force. This force can cause metal objects to move or stick to them. Magnets have two poles,named as north pole and south pole. The north pole of a magnet will attract the south pole of another magnet, and the south pole of a magnet will attract the north pole of another magnet.
Now move into the question. First option is to attract a known magnet. Yes, it is true that it can attract a known magnet when opposite poles of them are facing each other. But think that metal is not a magnet then it is attracted by the known magnet because magnets attract all magnetic metrical. So, by only knowing this statement we can’t conclude that if the metal attracts a known magnet, then it is a magnet.
Now move to the next option. We know that when the same poles of two magnets are facing each other then they will repel and we can only say that a magnet can attract a magnetic material like metal. So, by this we can conclude that if the metal and known magnet repel each other then the metal is also a magnet.
Hence our correct option is (B).
Note:
Magnets have two poles which are named north pole and south pole. The north pole of a magnet will attract the south pole of another magnet, and the south pole of a magnet will attract the north pole of another magnet. same poles of two magnets facing repulsion to each other.
Magnet is a substance which produces magnetic fields and attracts the same poles as well as repelling opposite poles. Attraction between two substances does not give us proper evidence whether they are magnetic or not. As one magnet and iron metal also attract each other.
Complete step by step solution:
It is also a hit and trial method question. Here we have to judge the option one by one logically. So, let’s start. But before starting let’s know some points about the magnet.
Magnets are objects that produce a magnetic force. This force can cause metal objects to move or stick to them. Magnets have two poles,named as north pole and south pole. The north pole of a magnet will attract the south pole of another magnet, and the south pole of a magnet will attract the north pole of another magnet.
Now move into the question. First option is to attract a known magnet. Yes, it is true that it can attract a known magnet when opposite poles of them are facing each other. But think that metal is not a magnet then it is attracted by the known magnet because magnets attract all magnetic metrical. So, by only knowing this statement we can’t conclude that if the metal attracts a known magnet, then it is a magnet.
Now move to the next option. We know that when the same poles of two magnets are facing each other then they will repel and we can only say that a magnet can attract a magnetic material like metal. So, by this we can conclude that if the metal and known magnet repel each other then the metal is also a magnet.
Hence our correct option is (B).
Note:
Magnets have two poles which are named north pole and south pole. The north pole of a magnet will attract the south pole of another magnet, and the south pole of a magnet will attract the north pole of another magnet. same poles of two magnets facing repulsion to each other.
Recently Updated Pages
Uniform Acceleration - Definition, Equation, Examples, and FAQs

JEE Main 2021 July 25 Shift 1 Question Paper with Answer Key

JEE Main 2021 July 22 Shift 2 Question Paper with Answer Key

JEE Atomic Structure and Chemical Bonding important Concepts and Tips

JEE Amino Acids and Peptides Important Concepts and Tips for Exam Preparation

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

Atomic Structure - Electrons, Protons, Neutrons and Atomic Models

Displacement-Time Graph and Velocity-Time Graph for JEE

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Electric field due to uniformly charged sphere class 12 physics JEE_Main

Learn About Angle Of Deviation In Prism: JEE Main Physics 2025

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

JEE Advanced Weightage 2025 Chapter-Wise for Physics, Maths and Chemistry

Degree of Dissociation and Its Formula With Solved Example for JEE

Wheatstone Bridge for JEE Main Physics 2025

Charging and Discharging of Capacitor
