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- A parallel beam of light is light that is parallel to each other when coming from the source of light.
- It means light travels in straight line.
- The end of the magnet which roughly points towards to geographical north is called north pole of magnet.
- The process of magnetising a magnetic material by keeping it near or in contact with a magnet is called magnetic induction.
5.An imaginary line which represents the strength and direction of a magnetic, gravitational, or electric field at any point is called a magnetic lines of force.
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