Question

lwhat is lustrous and non lustrous ​

Answer 1

Answer:

lustrous:shining,brighting, n non lustrous: not shining

Explanation:

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Answer 2

Answer:

I think you ment Insulator and Non insulator.

Here is your answer..

Insulator:- A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators.

Non insulators (conductors):-  A material or an object through which Heat, electricity, light can easily pass through are known as non insulators also known as conductor.