Final answer:
A syringe consists of a plastic tube (or barrel) and a plunger. Also, dropping a bar magnet into a copper tube would indeed create an electric current due to Faraday's Law of electromagnetic induction. true.
Step-by-step explanation:
As for the question, 'Is a plastic tube consisting of a barrel and a plunger?' it is not entirely clear what is being asked. In the context of a syringe, yes, a syringe commonly consists of a plastic tube (the barrel) and a plunger which is used to ingest or eject liquid by changing volume within the cylinder or barrel.
On the other hand, the option about dropping a bar magnet through a copper tube inducing an electric current in the tube is true. This is due to Faraday's law of electromagnetic induction. When the magnet moves through the copper tube, it changes the magnetic field within the tube, inducing an EMF (Electromotive Force). This induces an electric current in the tube.
Learn more about Electromagnetic Induction