Special glasses used to observe the solar eclipse are made by the use of _______?

شمسی چاند گرہن کا مشاہدہ کرنے کے لئے استعمال ہونے والے خصوصی شیشے _______ کے استعمال سے بنائے جاتے ہیں؟

Lenses

Concave mirrors

Convex mirrors

None of these

Solar eclipse glasses have lenses coated with black polymer or silver Mylar to safely block 99.99% of sunlight.

These coatings protect eyes by filtering harmful UV and infrared rays during the eclipse.