Frosted glass is widely used for translucent windows. The region where a transparent adhesive tape is stuck over the frosted glass becomes transparent. The most reasonable explanation for this is :

diffusion of adhesive glue into glass

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chemical reaction at adhesive tape - glass interface

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refractive index of adhesive glue is close to that of glass

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adhesive tape is more transparent than glass

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Solution

The correct option is B refractive index of adhesive glue is close to that of glass
Frosted glass has different refractive index on its surface as frosted glass is produced by coating on the surface. Now, as a transparent adhesive tape is stuck on the glass surface, the refractive index of the upper coating is adjusted to be same as that of glass, so it becomes transparent now.

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Question 11

Which type of the following materials is used for making the front glass (wind screen) of a car?

(a) Transparent

(b) Translucent

(d) All of these

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