Metal and or plastic frames. The lens are usually clear plastic, rather than the previous glass lens.
what is the person wearing if he has on spectacles.?
If a person is wearing spectacles it means he is wearing a pair of glasses. The word spectacles is rarely used in this day and age.
Eyeglasses.
The Great Pyramid is made of limestone, and this is a common pyramid material.
manufactured material are material that are man made material for e.g copper tree plant pencil
The first eyeglasses were made in Italy at about 1286.
Glass is the ideal material for a window. It's strong and easy to make, and you can see through it. High-quality glass can also be used in binoculars, telescopes and spectacles.
Not all spectacles for myopia are made of glass, and in those that are, any optical-quality glass would work.
I assume you mean spectacles? In which case, you must first have your eyes tested, and the Optician will have your spectacles made to your prescription.
The first eyeglasses were made in Italy at about 1286.
The noun spectacles is a shortened form for the term 'pair of spectacles'. The plural form is two pairs of spectacles.The nouns spectacles belongs to a group of nouns that are a shortened form for 'a pair of', for example:binocularsglassespantsscissorsshearsshortsspectaclestongstrouserstweezersAll of these nouns are made plural by changing 'a pair of...' to 'pairs of...'.
The same person as if they were not wearing spectacles. Spectacles are worn to correct vision disorders.
Not all... Some spectacle-makers use plastic lenses instead of glass.
There is no specific collective noun for 'spectacles' (or 'eyeglasses), most likely because spectacles aren't normally found in groups. However, if there is a group of spectacles, any noun suitable for the situation can function as a collective noun; for example a box of spectacles, a pile of spectacles, a row of spectacles, etc.
I can't find my spectacles!
what is the person wearing if he has on spectacles.?
what is the person wearing if he has on spectacles.?