Question

D. Define these terms.
1. Lustrous and nonlustrous objects
2. Magnetic and nonmagnetic substances​

Answer 1

Answer:

lustrous objects are those which have shine eg. Metals. and those which did not have any shine are called non lustrous eg. non metals.

magnetic substance are substance which have properties of magnet and those which did not have properties of magnet are non magnetic substances.

Answer 2

Answer:

lustrous:- a object that has shinning and soft surface for eg :- metal

non lustrous:- a object that are not lustrous for eg:-non metal except iodine

magnetic substance:-Substances that are attracted by a magnet are called magnetic substances. Example: Iron, cobalt, nickel, etc.

non magnetic substance:- Substances that are not attracted by a magnet are called non-magnetic materials.

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