Question

Consider the following statements.

I. A chalcogenide glass is a glass containing sulphur, selenium or tellurium.

II. Chalcogenide glass form the basis of re-writable CD and DVD solid state memory technology.

Which of the statement(s) given above is/are correct?

(a) Only I

(b) Only II

(c) Both I and II

(d) Neither I nor II

Answer 1

(c) Both I and II

Chalcogenide glass is a glass containing one or more chalcogens (sulphur, selenium and tellurium, except oxygen).